Home / 100,277,998.80-150,416,998.20-86,407,388.70

Finding the Fourth Proportional to 100,277,998.80, 150,416,998.20 and 86,407,388.70

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Solution

The fourth proportional to 100,277,998.80, 150,416,998.20 and 86,407,388.70 is: 129,611,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,277,998.80 : 150,416,998.20 = 86,407,388.70 : x
  2. Step 2: Convert to fraction form
    100,277,998.80/150,416,998.20 = 86,407,388.70/x
  3. Step 3: Cross multiply
    100,277,998.80x = 150,416,998.20 × 86,407,388.70
  4. Step 4: Simplify right side
    100,277,998.80x = 12,997,140,030,554,600
  5. Step 5: Solve for x
    x = 12,997,140,030,554,600/100,277,998.80
  6. Step 6: Final answer
    x = 129,611,083.05

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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.