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Finding the Third Proportional to 40,721,692 and 87,272,576

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Solution

The third proportional to 40,721,692 and 87,272,576 is: 187,037,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,721,692 : 87,272,576 = 87,272,576 : x
  2. Step 2: Convert to fraction form
    40,721,692/87,272,576 = 87,272,576/x
  3. Step 3: Cross multiply
    40,721,692x = 87,272,576 × 87,272,576
  4. Step 4: Simplify right side
    40,721,692x = 7,616,502,521,675,776
  5. Step 5: Solve for x
    x = 7,616,502,521,675,776/40,721,692
  6. Step 6: Final answer
    x = 187,037,967.91

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.