Home / 15,367,657.23-21,207,432.56-8,398,473.39

Finding the Fourth Proportional to 15,367,657.23, 21,207,432.56 and 8,398,473.39

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Solution

The fourth proportional to 15,367,657.23, 21,207,432.56 and 8,398,473.39 is: 11,589,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367,657.23 : 21,207,432.56 = 8,398,473.39 : x
  2. Step 2: Convert to fraction form
    15,367,657.23/21,207,432.56 = 8,398,473.39/x
  3. Step 3: Cross multiply
    15,367,657.23x = 21,207,432.56 × 8,398,473.39
  4. Step 4: Simplify right side
    15,367,657.23x = 178,110,057,983,387.22
  5. Step 5: Solve for x
    x = 178,110,057,983,387.22/15,367,657.23
  6. Step 6: Final answer
    x = 11,589,929.12

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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.