Home / 20,222,459,512.48-27,884,156,784.71-15,125,488,929.78

Finding the Fourth Proportional to 20,222,459,512.48, 27,884,156,784.71 and 15,125,488,929.78

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Solution

The fourth proportional to 20,222,459,512.48, 27,884,156,784.71 and 15,125,488,929.78 is: 20,856,093,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222,459,512.48 : 27,884,156,784.71 = 15,125,488,929.78 : x
  2. Step 2: Convert to fraction form
    20,222,459,512.48/27,884,156,784.71 = 15,125,488,929.78/x
  3. Step 3: Cross multiply
    20,222,459,512.48x = 27,884,156,784.71 × 15,125,488,929.78
  4. Step 4: Simplify right side
    20,222,459,512.48x = 421,761,504,763,363,524,608
  5. Step 5: Solve for x
    x = 421,761,504,763,363,524,608/20,222,459,512.48
  6. Step 6: Final answer
    x = 20,856,093,419.45

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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.