Home / 20,811,970,259.63-28,719,775,853.49-11,779,534,436.55

Finding the Fourth Proportional to 20,811,970,259.63, 28,719,775,853.49 and 11,779,534,436.55

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Solution

The fourth proportional to 20,811,970,259.63, 28,719,775,853.49 and 11,779,534,436.55 is: 16,255,336,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,970,259.63 : 28,719,775,853.49 = 11,779,534,436.55 : x
  2. Step 2: Convert to fraction form
    20,811,970,259.63/28,719,775,853.49 = 11,779,534,436.55/x
  3. Step 3: Cross multiply
    20,811,970,259.63x = 28,719,775,853.49 × 11,779,534,436.55
  4. Step 4: Simplify right side
    20,811,970,259.63x = 338,305,588,676,182,605,824
  5. Step 5: Solve for x
    x = 338,305,588,676,182,605,824/20,811,970,259.63
  6. Step 6: Final answer
    x = 16,255,336,926.58

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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.