Home / 71,516,319.52-98,702,920.56-40,157,888.80

Finding the Fourth Proportional to 71,516,319.52, 98,702,920.56 and 40,157,888.80

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Solution

The fourth proportional to 71,516,319.52, 98,702,920.56 and 40,157,888.80 is: 55,423,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,516,319.52 : 98,702,920.56 = 40,157,888.80 : x
  2. Step 2: Convert to fraction form
    71,516,319.52/98,702,920.56 = 40,157,888.80/x
  3. Step 3: Cross multiply
    71,516,319.52x = 98,702,920.56 × 40,157,888.80
  4. Step 4: Simplify right side
    71,516,319.52x = 3,963,700,908,083,713.50
  5. Step 5: Solve for x
    x = 3,963,700,908,083,713.50/71,516,319.52
  6. Step 6: Final answer
    x = 55,423,726.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.