Home / 10,453,757.80-15,680,636.70-8,186,276.20

Finding the Fourth Proportional to 10,453,757.80, 15,680,636.70 and 8,186,276.20

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Solution

The fourth proportional to 10,453,757.80, 15,680,636.70 and 8,186,276.20 is: 12,279,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453,757.80 : 15,680,636.70 = 8,186,276.20 : x
  2. Step 2: Convert to fraction form
    10,453,757.80/15,680,636.70 = 8,186,276.20/x
  3. Step 3: Cross multiply
    10,453,757.80x = 15,680,636.70 × 8,186,276.20
  4. Step 4: Simplify right side
    10,453,757.80x = 128,366,023,018,056.53
  5. Step 5: Solve for x
    x = 128,366,023,018,056.53/10,453,757.80
  6. Step 6: Final answer
    x = 12,279,414.30

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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.