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Finding the Third Proportional to 127,904,817 and 281,312,959.50

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Solution

The third proportional to 127,904,817 and 281,312,959.50 is: 618,717,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,904,817 : 281,312,959.50 = 281,312,959.50 : x
  2. Step 2: Convert to fraction form
    127,904,817/281,312,959.50 = 281,312,959.50/x
  3. Step 3: Cross multiply
    127,904,817x = 281,312,959.50 × 281,312,959.50
  4. Step 4: Simplify right side
    127,904,817x = 79,136,981,182,648,640
  5. Step 5: Solve for x
    x = 79,136,981,182,648,640/127,904,817
  6. Step 6: Final answer
    x = 618,717,754.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.