Home / 128,933,125.20-193,399,687.80-88,118,456.40

Finding the Fourth Proportional to 128,933,125.20, 193,399,687.80 and 88,118,456.40

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Solution

The fourth proportional to 128,933,125.20, 193,399,687.80 and 88,118,456.40 is: 132,177,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,933,125.20 : 193,399,687.80 = 88,118,456.40 : x
  2. Step 2: Convert to fraction form
    128,933,125.20/193,399,687.80 = 88,118,456.40/x
  3. Step 3: Cross multiply
    128,933,125.20x = 193,399,687.80 × 88,118,456.40
  4. Step 4: Simplify right side
    128,933,125.20x = 17,042,081,957,177,914
  5. Step 5: Solve for x
    x = 17,042,081,957,177,914/128,933,125.20
  6. Step 6: Final answer
    x = 132,177,684.60

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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.