Home / 20,811,970,268.64-28,719,775,865.88-11,779,534,445.52

Finding the Fourth Proportional to 20,811,970,268.64, 28,719,775,865.88 and 11,779,534,445.52

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Solution

The fourth proportional to 20,811,970,268.64, 28,719,775,865.88 and 11,779,534,445.52 is: 16,255,336,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,970,268.64 : 28,719,775,865.88 = 11,779,534,445.52 : x
  2. Step 2: Convert to fraction form
    20,811,970,268.64/28,719,775,865.88 = 11,779,534,445.52/x
  3. Step 3: Cross multiply
    20,811,970,268.64x = 28,719,775,865.88 × 11,779,534,445.52
  4. Step 4: Simplify right side
    20,811,970,268.64x = 338,305,589,079,747,461,120
  5. Step 5: Solve for x
    x = 338,305,589,079,747,461,120/20,811,970,268.64
  6. Step 6: Final answer
    x = 16,255,336,938.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.