Home / 38,402,421.30-57,669,987.15-20,486,517.30

Finding the Fourth Proportional to 38,402,421.30, 57,669,987.15 and 20,486,517.30

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Solution

The fourth proportional to 38,402,421.30, 57,669,987.15 and 20,486,517.30 is: 30,765,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402,421.30 : 57,669,987.15 = 20,486,517.30 : x
  2. Step 2: Convert to fraction form
    38,402,421.30/57,669,987.15 = 20,486,517.30/x
  3. Step 3: Cross multiply
    38,402,421.30x = 57,669,987.15 × 20,486,517.30
  4. Step 4: Simplify right side
    38,402,421.30x = 1,181,457,189,439,252.75
  5. Step 5: Solve for x
    x = 1,181,457,189,439,252.75/38,402,421.30
  6. Step 6: Final answer
    x = 30,765,174.42

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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.