Home / 20,471,884,989.60-30,719,158,592.40-9,991,188,225.12

Finding the Fourth Proportional to 20,471,884,989.60, 30,719,158,592.40 and 9,991,188,225.12

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Solution

The fourth proportional to 20,471,884,989.60, 30,719,158,592.40 and 9,991,188,225.12 is: 14,992,312,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471,884,989.60 : 30,719,158,592.40 = 9,991,188,225.12 : x
  2. Step 2: Convert to fraction form
    20,471,884,989.60/30,719,158,592.40 = 9,991,188,225.12/x
  3. Step 3: Cross multiply
    20,471,884,989.60x = 30,719,158,592.40 × 9,991,188,225.12
  4. Step 4: Simplify right side
    20,471,884,989.60x = 306,920,895,613,980,770,304
  5. Step 5: Solve for x
    x = 306,920,895,613,980,770,304/20,471,884,989.60
  6. Step 6: Final answer
    x = 14,992,312,421.15

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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.