Home / 20,479,928.20-30,719,892.30-5,333,859.70

Finding the Fourth Proportional to 20,479,928.20, 30,719,892.30 and 5,333,859.70

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Solution

The fourth proportional to 20,479,928.20, 30,719,892.30 and 5,333,859.70 is: 8,000,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,928.20 : 30,719,892.30 = 5,333,859.70 : x
  2. Step 2: Convert to fraction form
    20,479,928.20/30,719,892.30 = 5,333,859.70/x
  3. Step 3: Cross multiply
    20,479,928.20x = 30,719,892.30 × 5,333,859.70
  4. Step 4: Simplify right side
    20,479,928.20x = 163,855,595,527,310.31
  5. Step 5: Solve for x
    x = 163,855,595,527,310.31/20,479,928.20
  6. Step 6: Final answer
    x = 8,000,789.55

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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.