Home / 128,948,101.20-193,422,151.80-117,043,822.80

Finding the Fourth Proportional to 128,948,101.20, 193,422,151.80 and 117,043,822.80

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Solution

The fourth proportional to 128,948,101.20, 193,422,151.80 and 117,043,822.80 is: 175,565,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,948,101.20 : 193,422,151.80 = 117,043,822.80 : x
  2. Step 2: Convert to fraction form
    128,948,101.20/193,422,151.80 = 117,043,822.80/x
  3. Step 3: Cross multiply
    128,948,101.20x = 193,422,151.80 × 117,043,822.80
  4. Step 4: Simplify right side
    128,948,101.20x = 22,638,868,060,873,900
  5. Step 5: Solve for x
    x = 22,638,868,060,873,900/128,948,101.20
  6. Step 6: Final answer
    x = 175,565,734.20

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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.