Home / 21,581,609.40-32,367,230.10-12,463,990.20

Finding the Fourth Proportional to 21,581,609.40, 32,367,230.10 and 12,463,990.20

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Solution

The fourth proportional to 21,581,609.40, 32,367,230.10 and 12,463,990.20 is: 18,692,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,609.40 : 32,367,230.10 = 12,463,990.20 : x
  2. Step 2: Convert to fraction form
    21,581,609.40/32,367,230.10 = 12,463,990.20/x
  3. Step 3: Cross multiply
    21,581,609.40x = 32,367,230.10 × 12,463,990.20
  4. Step 4: Simplify right side
    21,581,609.40x = 403,424,838,767,545
  5. Step 5: Solve for x
    x = 403,424,838,767,545/21,581,609.40
  6. Step 6: Final answer
    x = 18,692,991.39

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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.