Home / 8,520,600.78-12,781,014.30-2,840,826.96

Finding the Fourth Proportional to 8,520,600.78, 12,781,014.30 and 2,840,826.96

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Solution

The fourth proportional to 8,520,600.78, 12,781,014.30 and 2,840,826.96 is: 4,261,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,600.78 : 12,781,014.30 = 2,840,826.96 : x
  2. Step 2: Convert to fraction form
    8,520,600.78/12,781,014.30 = 2,840,826.96/x
  3. Step 3: Cross multiply
    8,520,600.78x = 12,781,014.30 × 2,840,826.96
  4. Step 4: Simplify right side
    8,520,600.78x = 36,308,649,999,585.53
  5. Step 5: Solve for x
    x = 36,308,649,999,585.53/8,520,600.78
  6. Step 6: Final answer
    x = 4,261,278.16

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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.