Home / 90,288,585.39-124,605,932.33-51,137,326.92

Finding the Fourth Proportional to 90,288,585.39, 124,605,932.33 and 51,137,326.92

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Solution

The fourth proportional to 90,288,585.39, 124,605,932.33 and 51,137,326.92 is: 70,573,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,585.39 : 124,605,932.33 = 51,137,326.92 : x
  2. Step 2: Convert to fraction form
    90,288,585.39/124,605,932.33 = 51,137,326.92/x
  3. Step 3: Cross multiply
    90,288,585.39x = 124,605,932.33 × 51,137,326.92
  4. Step 4: Simplify right side
    90,288,585.39x = 6,372,014,297,474,921
  5. Step 5: Solve for x
    x = 6,372,014,297,474,921/90,288,585.39
  6. Step 6: Final answer
    x = 70,573,863.46

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Double scale
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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.