Home / 72,695,010.10-109,042,515.15-66,317,718.10

Finding the Fourth Proportional to 72,695,010.10, 109,042,515.15 and 66,317,718.10

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Solution

The fourth proportional to 72,695,010.10, 109,042,515.15 and 66,317,718.10 is: 99,476,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,695,010.10 : 109,042,515.15 = 66,317,718.10 : x
  2. Step 2: Convert to fraction form
    72,695,010.10/109,042,515.15 = 66,317,718.10/x
  3. Step 3: Cross multiply
    72,695,010.10x = 109,042,515.15 × 66,317,718.10
  4. Step 4: Simplify right side
    72,695,010.10x = 7,231,450,780,632,680
  5. Step 5: Solve for x
    x = 7,231,450,780,632,680/72,695,010.10
  6. Step 6: Final answer
    x = 99,476,577.15

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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.