Home / 20,387,371.04-30,565,781.88-12,298,461.15

Finding the Fourth Proportional to 20,387,371.04, 30,565,781.88 and 12,298,461.15

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Solution

The fourth proportional to 20,387,371.04, 30,565,781.88 and 12,298,461.15 is: 18,438,477.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,371.04 : 30,565,781.88 = 12,298,461.15 : x
  2. Step 2: Convert to fraction form
    20,387,371.04/30,565,781.88 = 12,298,461.15/x
  3. Step 3: Cross multiply
    20,387,371.04x = 30,565,781.88 × 12,298,461.15
  4. Step 4: Simplify right side
    20,387,371.04x = 375,912,080,909,061.69
  5. Step 5: Solve for x
    x = 375,912,080,909,061.69/20,387,371.04
  6. Step 6: Final answer
    x = 18,438,477.44

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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.