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Finding the Third Proportional to 129,443,798 and 278,097,700

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Solution

The third proportional to 129,443,798 and 278,097,700 is: 597,466,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,443,798 : 278,097,700 = 278,097,700 : x
  2. Step 2: Convert to fraction form
    129,443,798/278,097,700 = 278,097,700/x
  3. Step 3: Cross multiply
    129,443,798x = 278,097,700 × 278,097,700
  4. Step 4: Simplify right side
    129,443,798x = 77,338,330,745,290,000
  5. Step 5: Solve for x
    x = 77,338,330,745,290,000/129,443,798
  6. Step 6: Final answer
    x = 597,466,483.06

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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.