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Finding the Third Proportional to 287,680,167 and 621,327,388.50

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Solution

The third proportional to 287,680,167 and 621,327,388.50 is: 1,341,933,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,680,167 : 621,327,388.50 = 621,327,388.50 : x
  2. Step 2: Convert to fraction form
    287,680,167/621,327,388.50 = 621,327,388.50/x
  3. Step 3: Cross multiply
    287,680,167x = 621,327,388.50 × 621,327,388.50
  4. Step 4: Simplify right side
    287,680,167x = 386,047,723,700,229,952
  5. Step 5: Solve for x
    x = 386,047,723,700,229,952/287,680,167
  6. Step 6: Final answer
    x = 1,341,933,744.43

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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.