Home / 20,785,849.70-31,155,446.55-10,008,313.70

Finding the Fourth Proportional to 20,785,849.70, 31,155,446.55 and 10,008,313.70

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Solution

The fourth proportional to 20,785,849.70, 31,155,446.55 and 10,008,313.70 is: 15,001,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,849.70 : 31,155,446.55 = 10,008,313.70 : x
  2. Step 2: Convert to fraction form
    20,785,849.70/31,155,446.55 = 10,008,313.70/x
  3. Step 3: Cross multiply
    20,785,849.70x = 31,155,446.55 × 10,008,313.70
  4. Step 4: Simplify right side
    20,785,849.70x = 311,813,482,535,982.75
  5. Step 5: Solve for x
    x = 311,813,482,535,982.75/20,785,849.70
  6. Step 6: Final answer
    x = 15,001,238.20

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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.