Home / 20,182,123.20-30,273,184.80-7,398,379.20

Finding the Fourth Proportional to 20,182,123.20, 30,273,184.80 and 7,398,379.20

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Solution

The fourth proportional to 20,182,123.20, 30,273,184.80 and 7,398,379.20 is: 11,097,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182,123.20 : 30,273,184.80 = 7,398,379.20 : x
  2. Step 2: Convert to fraction form
    20,182,123.20/30,273,184.80 = 7,398,379.20/x
  3. Step 3: Cross multiply
    20,182,123.20x = 30,273,184.80 × 7,398,379.20
  4. Step 4: Simplify right side
    20,182,123.20x = 223,972,500,742,076.16
  5. Step 5: Solve for x
    x = 223,972,500,742,076.16/20,182,123.20
  6. Step 6: Final answer
    x = 11,097,568.80

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Similar ratio
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1.5x scale

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.