Home / 90,643,128.39-135,951,032.39-58,081,241.61

Finding the Fourth Proportional to 90,643,128.39, 135,951,032.39 and 58,081,241.61

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Solution

The fourth proportional to 90,643,128.39, 135,951,032.39 and 58,081,241.61 is: 87,113,109.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,643,128.39 : 135,951,032.39 = 58,081,241.61 : x
  2. Step 2: Convert to fraction form
    90,643,128.39/135,951,032.39 = 58,081,241.61/x
  3. Step 3: Cross multiply
    90,643,128.39x = 135,951,032.39 × 58,081,241.61
  4. Step 4: Simplify right side
    90,643,128.39x = 7,896,204,759,082,119
  5. Step 5: Solve for x
    x = 7,896,204,759,082,119/90,643,128.39
  6. Step 6: Final answer
    x = 87,113,109.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.