Home / 81,413,937.92-122,020,856.88-37,635,478.71

Finding the Fourth Proportional to 81,413,937.92, 122,020,856.88 and 37,635,478.71

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Solution

The fourth proportional to 81,413,937.92, 122,020,856.88 and 37,635,478.71 is: 56,406,967.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413,937.92 : 122,020,856.88 = 37,635,478.71 : x
  2. Step 2: Convert to fraction form
    81,413,937.92/122,020,856.88 = 37,635,478.71/x
  3. Step 3: Cross multiply
    81,413,937.92x = 122,020,856.88 × 37,635,478.71
  4. Step 4: Simplify right side
    81,413,937.92x = 4,592,313,361,791,792
  5. Step 5: Solve for x
    x = 4,592,313,361,791,792/81,413,937.92
  6. Step 6: Final answer
    x = 56,406,967.64

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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.