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Finding the Third Proportional to 161,438,280 and 250,663,788

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Solution

The third proportional to 161,438,280 and 250,663,788 is: 389,203,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,438,280 : 250,663,788 = 250,663,788 : x
  2. Step 2: Convert to fraction form
    161,438,280/250,663,788 = 250,663,788/x
  3. Step 3: Cross multiply
    161,438,280x = 250,663,788 × 250,663,788
  4. Step 4: Simplify right side
    161,438,280x = 62,832,334,614,508,944
  5. Step 5: Solve for x
    x = 62,832,334,614,508,944/161,438,280
  6. Step 6: Final answer
    x = 389,203,444.28

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.