Home / 90,645,479.55-125,086,850.24-51,487,134.39

Finding the Fourth Proportional to 90,645,479.55, 125,086,850.24 and 51,487,134.39

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Solution

The fourth proportional to 90,645,479.55, 125,086,850.24 and 51,487,134.39 is: 71,050,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,645,479.55 : 125,086,850.24 = 51,487,134.39 : x
  2. Step 2: Convert to fraction form
    90,645,479.55/125,086,850.24 = 51,487,134.39/x
  3. Step 3: Cross multiply
    90,645,479.55x = 125,086,850.24 × 51,487,134.39
  4. Step 4: Simplify right side
    90,645,479.55x = 6,440,363,468,471,248
  5. Step 5: Solve for x
    x = 6,440,363,468,471,248/90,645,479.55
  6. Step 6: Final answer
    x = 71,050,023.68

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1.5x scale

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.