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Finding the Third Proportional to 20,124,154 and 31,381,968

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Solution

The third proportional to 20,124,154 and 31,381,968 is: 48,937,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,154 : 31,381,968 = 31,381,968 : x
  2. Step 2: Convert to fraction form
    20,124,154/31,381,968 = 31,381,968/x
  3. Step 3: Cross multiply
    20,124,154x = 31,381,968 × 31,381,968
  4. Step 4: Simplify right side
    20,124,154x = 984,827,915,553,024
  5. Step 5: Solve for x
    x = 984,827,915,553,024/20,124,154
  6. Step 6: Final answer
    x = 48,937,605.80

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.