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Finding the Third Proportional to 662,915,766.88 and 921,731,385.88

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Solution

The third proportional to 662,915,766.88 and 921,731,385.88 is: 1,281,593,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,915,766.88 : 921,731,385.88 = 921,731,385.88 : x
  2. Step 2: Convert to fraction form
    662,915,766.88/921,731,385.88 = 921,731,385.88/x
  3. Step 3: Cross multiply
    662,915,766.88x = 921,731,385.88 × 921,731,385.88
  4. Step 4: Simplify right side
    662,915,766.88x = 849,588,747,707,048,192
  5. Step 5: Solve for x
    x = 849,588,747,707,048,192/662,915,766.88
  6. Step 6: Final answer
    x = 1,281,593,816.53

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.