Home / 90,933,356.62-125,488,082.55-49,117,421.71

Finding the Fourth Proportional to 90,933,356.62, 125,488,082.55 and 49,117,421.71

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Solution

The fourth proportional to 90,933,356.62, 125,488,082.55 and 49,117,421.71 is: 67,782,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,933,356.62 : 125,488,082.55 = 49,117,421.71 : x
  2. Step 2: Convert to fraction form
    90,933,356.62/125,488,082.55 = 49,117,421.71/x
  3. Step 3: Cross multiply
    90,933,356.62x = 125,488,082.55 × 49,117,421.71
  4. Step 4: Simplify right side
    90,933,356.62x = 6,163,651,070,187,642
  5. Step 5: Solve for x
    x = 6,163,651,070,187,642/90,933,356.62
  6. Step 6: Final answer
    x = 67,782,069.19

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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.