Home / 137,172,260.85-189,454,826.52-90,338,691.03

Finding the Fourth Proportional to 137,172,260.85, 189,454,826.52 and 90,338,691.03

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Solution

The fourth proportional to 137,172,260.85, 189,454,826.52 and 90,338,691.03 is: 124,770,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,172,260.85 : 189,454,826.52 = 90,338,691.03 : x
  2. Step 2: Convert to fraction form
    137,172,260.85/189,454,826.52 = 90,338,691.03/x
  3. Step 3: Cross multiply
    137,172,260.85x = 189,454,826.52 × 90,338,691.03
  4. Step 4: Simplify right side
    137,172,260.85x = 17,115,101,037,132,532
  5. Step 5: Solve for x
    x = 17,115,101,037,132,532/137,172,260.85
  6. Step 6: Final answer
    x = 124,770,860.60

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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.