Home / 90,221,870.20-124,733,879.13-66,663,249.83

Finding the Fourth Proportional to 90,221,870.20, 124,733,879.13 and 66,663,249.83

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Solution

The fourth proportional to 90,221,870.20, 124,733,879.13 and 66,663,249.83 is: 92,163,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221,870.20 : 124,733,879.13 = 66,663,249.83 : x
  2. Step 2: Convert to fraction form
    90,221,870.20/124,733,879.13 = 66,663,249.83/x
  3. Step 3: Cross multiply
    90,221,870.20x = 124,733,879.13 × 66,663,249.83
  4. Step 4: Simplify right side
    90,221,870.20x = 8,315,165,747,503,787
  5. Step 5: Solve for x
    x = 8,315,165,747,503,787/90,221,870.20
  6. Step 6: Final answer
    x = 92,163,526.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.