Home / 88,406,863.20-121,117,990.83-85,093,306.70

Finding the Fourth Proportional to 88,406,863.20, 121,117,990.83 and 85,093,306.70

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Solution

The fourth proportional to 88,406,863.20, 121,117,990.83 and 85,093,306.70 is: 116,578,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,406,863.20 : 121,117,990.83 = 85,093,306.70 : x
  2. Step 2: Convert to fraction form
    88,406,863.20/121,117,990.83 = 85,093,306.70/x
  3. Step 3: Cross multiply
    88,406,863.20x = 121,117,990.83 × 85,093,306.70
  4. Step 4: Simplify right side
    88,406,863.20x = 10,306,330,339,979,386
  5. Step 5: Solve for x
    x = 10,306,330,339,979,386/88,406,863.20
  6. Step 6: Final answer
    x = 116,578,396.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.