Home / 19,872,002.20-29,808,003.30-13,793,891.80

Finding the Fourth Proportional to 19,872,002.20, 29,808,003.30 and 13,793,891.80

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Solution

The fourth proportional to 19,872,002.20, 29,808,003.30 and 13,793,891.80 is: 20,690,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,002.20 : 29,808,003.30 = 13,793,891.80 : x
  2. Step 2: Convert to fraction form
    19,872,002.20/29,808,003.30 = 13,793,891.80/x
  3. Step 3: Cross multiply
    19,872,002.20x = 29,808,003.30 × 13,793,891.80
  4. Step 4: Simplify right side
    19,872,002.20x = 411,168,372,294,243
  5. Step 5: Solve for x
    x = 411,168,372,294,243/19,872,002.20
  6. Step 6: Final answer
    x = 20,690,837.70

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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.