Home / 8,458,999.60-12,688,499.40-2,779,409.20

Finding the Fourth Proportional to 8,458,999.60, 12,688,499.40 and 2,779,409.20

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Solution

The fourth proportional to 8,458,999.60, 12,688,499.40 and 2,779,409.20 is: 4,169,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,999.60 : 12,688,499.40 = 2,779,409.20 : x
  2. Step 2: Convert to fraction form
    8,458,999.60/12,688,499.40 = 2,779,409.20/x
  3. Step 3: Cross multiply
    8,458,999.60x = 12,688,499.40 × 2,779,409.20
  4. Step 4: Simplify right side
    8,458,999.60x = 35,266,531,966,554.48
  5. Step 5: Solve for x
    x = 35,266,531,966,554.48/8,458,999.60
  6. Step 6: Final answer
    x = 4,169,113.80

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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.