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Finding the Third Proportional to 18,999,957.38 and 40,690,329.75

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Solution

The third proportional to 18,999,957.38 and 40,690,329.75 is: 87,142,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999,957.38 : 40,690,329.75 = 40,690,329.75 : x
  2. Step 2: Convert to fraction form
    18,999,957.38/40,690,329.75 = 40,690,329.75/x
  3. Step 3: Cross multiply
    18,999,957.38x = 40,690,329.75 × 40,690,329.75
  4. Step 4: Simplify right side
    18,999,957.38x = 1,655,702,935,163,735
  5. Step 5: Solve for x
    x = 1,655,702,935,163,735/18,999,957.38
  6. Step 6: Final answer
    x = 87,142,455.24

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.