Home / 91,990,104.06-138,046,518.36-47,715,194.61

Finding the Fourth Proportional to 91,990,104.06, 138,046,518.36 and 47,715,194.61

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Solution

The fourth proportional to 91,990,104.06, 138,046,518.36 and 47,715,194.61 is: 71,604,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,990,104.06 : 138,046,518.36 = 47,715,194.61 : x
  2. Step 2: Convert to fraction form
    91,990,104.06/138,046,518.36 = 47,715,194.61/x
  3. Step 3: Cross multiply
    91,990,104.06x = 138,046,518.36 × 47,715,194.61
  4. Step 4: Simplify right side
    91,990,104.06x = 6,586,916,488,780,339
  5. Step 5: Solve for x
    x = 6,586,916,488,780,339/91,990,104.06
  6. Step 6: Final answer
    x = 71,604,620.48

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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.