Home / 20,166,489.70-30,249,734.55-7,388,286.10

Finding the Fourth Proportional to 20,166,489.70, 30,249,734.55 and 7,388,286.10

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Solution

The fourth proportional to 20,166,489.70, 30,249,734.55 and 7,388,286.10 is: 11,082,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166,489.70 : 30,249,734.55 = 7,388,286.10 : x
  2. Step 2: Convert to fraction form
    20,166,489.70/30,249,734.55 = 7,388,286.10/x
  3. Step 3: Cross multiply
    20,166,489.70x = 30,249,734.55 × 7,388,286.10
  4. Step 4: Simplify right side
    20,166,489.70x = 223,493,693,304,454.75
  5. Step 5: Solve for x
    x = 223,493,693,304,454.75/20,166,489.70
  6. Step 6: Final answer
    x = 11,082,429.15

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Double scale
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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.