Home / 21,909,149.87-32,866,714.68-9,126,665.21

Finding the Fourth Proportional to 21,909,149.87, 32,866,714.68 and 9,126,665.21

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Solution

The fourth proportional to 21,909,149.87, 32,866,714.68 and 9,126,665.21 is: 13,691,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909,149.87 : 32,866,714.68 = 9,126,665.21 : x
  2. Step 2: Convert to fraction form
    21,909,149.87/32,866,714.68 = 9,126,665.21/x
  3. Step 3: Cross multiply
    21,909,149.87x = 32,866,714.68 × 9,126,665.21
  4. Step 4: Simplify right side
    21,909,149.87x = 299,963,501,272,618.69
  5. Step 5: Solve for x
    x = 299,963,501,272,618.69/21,909,149.87
  6. Step 6: Final answer
    x = 13,691,243.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.