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Finding the Third Proportional to 28,902,970 and 67,442,540

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Solution

The third proportional to 28,902,970 and 67,442,540 is: 157,371,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902,970 : 67,442,540 = 67,442,540 : x
  2. Step 2: Convert to fraction form
    28,902,970/67,442,540 = 67,442,540/x
  3. Step 3: Cross multiply
    28,902,970x = 67,442,540 × 67,442,540
  4. Step 4: Simplify right side
    28,902,970x = 4,548,496,201,651,600
  5. Step 5: Solve for x
    x = 4,548,496,201,651,600/28,902,970
  6. Step 6: Final answer
    x = 157,371,239.07

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.