Home / 137,172,199.96-189,454,743.03-90,338,630.14

Finding the Fourth Proportional to 137,172,199.96, 189,454,743.03 and 90,338,630.14

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Solution

The fourth proportional to 137,172,199.96, 189,454,743.03 and 90,338,630.14 is: 124,770,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,172,199.96 : 189,454,743.03 = 90,338,630.14 : x
  2. Step 2: Convert to fraction form
    137,172,199.96/189,454,743.03 = 90,338,630.14/x
  3. Step 3: Cross multiply
    137,172,199.96x = 189,454,743.03 × 90,338,630.14
  4. Step 4: Simplify right side
    137,172,199.96x = 17,115,081,958,855,914
  5. Step 5: Solve for x
    x = 17,115,081,958,855,914/137,172,199.96
  6. Step 6: Final answer
    x = 124,770,776.91

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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.