Home / 12,254,490.90-18,381,736.35-3,279,042.90

Finding the Fourth Proportional to 12,254,490.90, 18,381,736.35 and 3,279,042.90

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Solution

The fourth proportional to 12,254,490.90, 18,381,736.35 and 3,279,042.90 is: 4,918,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254,490.90 : 18,381,736.35 = 3,279,042.90 : x
  2. Step 2: Convert to fraction form
    12,254,490.90/18,381,736.35 = 3,279,042.90/x
  3. Step 3: Cross multiply
    12,254,490.90x = 18,381,736.35 × 3,279,042.90
  4. Step 4: Simplify right side
    12,254,490.90x = 60,274,502,068,139.42
  5. Step 5: Solve for x
    x = 60,274,502,068,139.42/12,254,490.90
  6. Step 6: Final answer
    x = 4,918,564.35

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Similar ratio
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1.5x scale

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.