Home / 20,118,680.64-30,154,256.64-8,600,778.72

Finding the Fourth Proportional to 20,118,680.64, 30,154,256.64 and 8,600,778.72

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Solution

The fourth proportional to 20,118,680.64, 30,154,256.64 and 8,600,778.72 is: 12,891,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,680.64 : 30,154,256.64 = 8,600,778.72 : x
  2. Step 2: Convert to fraction form
    20,118,680.64/30,154,256.64 = 8,600,778.72/x
  3. Step 3: Cross multiply
    20,118,680.64x = 30,154,256.64 × 8,600,778.72
  4. Step 4: Simplify right side
    20,118,680.64x = 259,350,088,826,730.72
  5. Step 5: Solve for x
    x = 259,350,088,826,730.72/20,118,680.64
  6. Step 6: Final answer
    x = 12,891,008.78

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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.