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Finding the Fourth Proportional to 15,990,952.50, 22,068,040.95 and 8,747,608.50

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Solution

The fourth proportional to 15,990,952.50, 22,068,040.95 and 8,747,608.50 is: 12,071,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990,952.50 : 22,068,040.95 = 8,747,608.50 : x
  2. Step 2: Convert to fraction form
    15,990,952.50/22,068,040.95 = 8,747,608.50/x
  3. Step 3: Cross multiply
    15,990,952.50x = 22,068,040.95 × 8,747,608.50
  4. Step 4: Simplify right side
    15,990,952.50x = 193,042,582,592,568.06
  5. Step 5: Solve for x
    x = 193,042,582,592,568.06/15,990,952.50
  6. Step 6: Final answer
    x = 12,071,987.74

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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.