Home / 90,336,432.61-135,428,473.27-39,179,920.33

Finding the Fourth Proportional to 90,336,432.61, 135,428,473.27 and 39,179,920.33

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Solution

The fourth proportional to 90,336,432.61, 135,428,473.27 and 39,179,920.33 is: 58,736,842.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,336,432.61 : 135,428,473.27 = 39,179,920.33 : x
  2. Step 2: Convert to fraction form
    90,336,432.61/135,428,473.27 = 39,179,920.33/x
  3. Step 3: Cross multiply
    90,336,432.61x = 135,428,473.27 × 39,179,920.33
  4. Step 4: Simplify right side
    90,336,432.61x = 5,306,076,793,132,135
  5. Step 5: Solve for x
    x = 5,306,076,793,132,135/90,336,432.61
  6. Step 6: Final answer
    x = 58,736,842.27

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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.