Home / 90,857,754.90-136,286,632.35-54,578,049.30

Finding the Fourth Proportional to 90,857,754.90, 136,286,632.35 and 54,578,049.30

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Solution

The fourth proportional to 90,857,754.90, 136,286,632.35 and 54,578,049.30 is: 81,867,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,857,754.90 : 136,286,632.35 = 54,578,049.30 : x
  2. Step 2: Convert to fraction form
    90,857,754.90/136,286,632.35 = 54,578,049.30/x
  3. Step 3: Cross multiply
    90,857,754.90x = 136,286,632.35 × 54,578,049.30
  4. Step 4: Simplify right side
    90,857,754.90x = 7,438,258,539,329,274
  5. Step 5: Solve for x
    x = 7,438,258,539,329,274/90,857,754.90
  6. Step 6: Final answer
    x = 81,867,073.95

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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.