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Finding the Third Proportional to 78,231,562 and 169,926,080

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Solution

The third proportional to 78,231,562 and 169,926,080 is: 369,094,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,231,562 : 169,926,080 = 169,926,080 : x
  2. Step 2: Convert to fraction form
    78,231,562/169,926,080 = 169,926,080/x
  3. Step 3: Cross multiply
    78,231,562x = 169,926,080 × 169,926,080
  4. Step 4: Simplify right side
    78,231,562x = 28,874,872,664,166,400
  5. Step 5: Solve for x
    x = 28,874,872,664,166,400/78,231,562
  6. Step 6: Final answer
    x = 369,094,926.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.