Home / 20,471,884,990.60-30,719,158,593.90-9,991,188,226.12

Finding the Fourth Proportional to 20,471,884,990.60, 30,719,158,593.90 and 9,991,188,226.12

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Solution

The fourth proportional to 20,471,884,990.60, 30,719,158,593.90 and 9,991,188,226.12 is: 14,992,312,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471,884,990.60 : 30,719,158,593.90 = 9,991,188,226.12 : x
  2. Step 2: Convert to fraction form
    20,471,884,990.60/30,719,158,593.90 = 9,991,188,226.12/x
  3. Step 3: Cross multiply
    20,471,884,990.60x = 30,719,158,593.90 × 9,991,188,226.12
  4. Step 4: Simplify right side
    20,471,884,990.60x = 306,920,895,659,686,756,352
  5. Step 5: Solve for x
    x = 306,920,895,659,686,756,352/20,471,884,990.60
  6. Step 6: Final answer
    x = 14,992,312,422.65

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Double scale
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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.