Home / 128,265,934.52-192,465,049.62-60,115,549.88

Finding the Fourth Proportional to 128,265,934.52, 192,465,049.62 and 60,115,549.88

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Solution

The fourth proportional to 128,265,934.52, 192,465,049.62 and 60,115,549.88 is: 90,204,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,265,934.52 : 192,465,049.62 = 60,115,549.88 : x
  2. Step 2: Convert to fraction form
    128,265,934.52/192,465,049.62 = 60,115,549.88/x
  3. Step 3: Cross multiply
    128,265,934.52x = 192,465,049.62 × 60,115,549.88
  4. Step 4: Simplify right side
    128,265,934.52x = 11,570,142,290,587,786
  5. Step 5: Solve for x
    x = 11,570,142,290,587,786/128,265,934.52
  6. Step 6: Final answer
    x = 90,204,326.92

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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.