Home / 1,240,271,998.80-1,860,407,998.20-1,010,689,486.80

Finding the Fourth Proportional to 1,240,271,998.80, 1,860,407,998.20 and 1,010,689,486.80

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Solution

The fourth proportional to 1,240,271,998.80, 1,860,407,998.20 and 1,010,689,486.80 is: 1,516,034,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,271,998.80 : 1,860,407,998.20 = 1,010,689,486.80 : x
  2. Step 2: Convert to fraction form
    1,240,271,998.80/1,860,407,998.20 = 1,010,689,486.80/x
  3. Step 3: Cross multiply
    1,240,271,998.80x = 1,860,407,998.20 × 1,010,689,486.80
  4. Step 4: Simplify right side
    1,240,271,998.80x = 1,880,294,804,939,373,312
  5. Step 5: Solve for x
    x = 1,880,294,804,939,373,312/1,240,271,998.80
  6. Step 6: Final answer
    x = 1,516,034,230.20

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Half scale
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Double scale
Find fourth proportional to 1,240,271,999.80, 1,860,407,999.70 and 1,010,689,487.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.