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Finding the Third Proportional to 387,894,703.50 and 861,882,835.50

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Solution

The third proportional to 387,894,703.50 and 861,882,835.50 is: 1,915,061,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,894,703.50 : 861,882,835.50 = 861,882,835.50 : x
  2. Step 2: Convert to fraction form
    387,894,703.50/861,882,835.50 = 861,882,835.50/x
  3. Step 3: Cross multiply
    387,894,703.50x = 861,882,835.50 × 861,882,835.50
  4. Step 4: Simplify right side
    387,894,703.50x = 742,842,022,129,520,000
  5. Step 5: Solve for x
    x = 742,842,022,129,520,000/387,894,703.50
  6. Step 6: Final answer
    x = 1,915,061,008.64

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.