Home / 20,479,768.56-30,719,442.56-11,838,370.53

Finding the Fourth Proportional to 20,479,768.56, 30,719,442.56 and 11,838,370.53

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Solution

The fourth proportional to 20,479,768.56, 30,719,442.56 and 11,838,370.53 is: 17,757,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,768.56 : 30,719,442.56 = 11,838,370.53 : x
  2. Step 2: Convert to fraction form
    20,479,768.56/30,719,442.56 = 11,838,370.53/x
  3. Step 3: Cross multiply
    20,479,768.56x = 30,719,442.56 × 11,838,370.53
  4. Step 4: Simplify right side
    20,479,768.56x = 363,668,143,500,331.75
  5. Step 5: Solve for x
    x = 363,668,143,500,331.75/20,479,768.56
  6. Step 6: Final answer
    x = 17,757,434.24

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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.