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Finding the Third Proportional to 987,393,721.50 and 2,123,386,803

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Solution

The third proportional to 987,393,721.50 and 2,123,386,803 is: 4,566,336,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,393,721.50 : 2,123,386,803 = 2,123,386,803 : x
  2. Step 2: Convert to fraction form
    987,393,721.50/2,123,386,803 = 2,123,386,803/x
  3. Step 3: Cross multiply
    987,393,721.50x = 2,123,386,803 × 2,123,386,803
  4. Step 4: Simplify right side
    987,393,721.50x = 4,508,771,515,154,561,024
  5. Step 5: Solve for x
    x = 4,508,771,515,154,561,024/987,393,721.50
  6. Step 6: Final answer
    x = 4,566,336,018.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.