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Finding the Fourth Proportional to 532,485,761, 798,728,641.50 and 129,046,145

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Solution

The fourth proportional to 532,485,761, 798,728,641.50 and 129,046,145 is: 193,569,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,485,761 : 798,728,641.50 = 129,046,145 : x
  2. Step 2: Convert to fraction form
    532,485,761/798,728,641.50 = 129,046,145/x
  3. Step 3: Cross multiply
    532,485,761x = 798,728,641.50 × 129,046,145
  4. Step 4: Simplify right side
    532,485,761x = 103,072,852,086,662,016
  5. Step 5: Solve for x
    x = 103,072,852,086,662,016/532,485,761
  6. Step 6: Final answer
    x = 193,569,217.50

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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.