Home / 21,387,136.20-32,080,704.30-9,872,581.20

Finding the Fourth Proportional to 21,387,136.20, 32,080,704.30 and 9,872,581.20

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Solution

The fourth proportional to 21,387,136.20, 32,080,704.30 and 9,872,581.20 is: 14,808,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,136.20 : 32,080,704.30 = 9,872,581.20 : x
  2. Step 2: Convert to fraction form
    21,387,136.20/32,080,704.30 = 9,872,581.20/x
  3. Step 3: Cross multiply
    21,387,136.20x = 32,080,704.30 × 9,872,581.20
  4. Step 4: Simplify right side
    21,387,136.20x = 316,719,358,154,939.12
  5. Step 5: Solve for x
    x = 316,719,358,154,939.12/21,387,136.20
  6. Step 6: Final answer
    x = 14,808,871.80

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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.