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Finding the Third Proportional to 18,155,937 and 39,181,065

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Solution

The third proportional to 18,155,937 and 39,181,065 is: 84,553,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155,937 : 39,181,065 = 39,181,065 : x
  2. Step 2: Convert to fraction form
    18,155,937/39,181,065 = 39,181,065/x
  3. Step 3: Cross multiply
    18,155,937x = 39,181,065 × 39,181,065
  4. Step 4: Simplify right side
    18,155,937x = 1,535,155,854,534,225
  5. Step 5: Solve for x
    x = 1,535,155,854,534,225/18,155,937
  6. Step 6: Final answer
    x = 84,553,931.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.