Home / 20,811,970,257.87-28,719,775,851.08-11,779,534,434.80

Finding the Fourth Proportional to 20,811,970,257.87, 28,719,775,851.08 and 11,779,534,434.80

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Solution

The fourth proportional to 20,811,970,257.87, 28,719,775,851.08 and 11,779,534,434.80 is: 16,255,336,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,970,257.87 : 28,719,775,851.08 = 11,779,534,434.80 : x
  2. Step 2: Convert to fraction form
    20,811,970,257.87/28,719,775,851.08 = 11,779,534,434.80/x
  3. Step 3: Cross multiply
    20,811,970,257.87x = 28,719,775,851.08 × 11,779,534,434.80
  4. Step 4: Simplify right side
    20,811,970,257.87x = 338,305,588,597,331,853,312
  5. Step 5: Solve for x
    x = 338,305,588,597,331,853,312/20,811,970,257.87
  6. Step 6: Final answer
    x = 16,255,336,924.16

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1.5x scale

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.