Home / 8,520,601.78-12,781,015.80-2,840,827.96

Finding the Fourth Proportional to 8,520,601.78, 12,781,015.80 and 2,840,827.96

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Solution

The fourth proportional to 8,520,601.78, 12,781,015.80 and 2,840,827.96 is: 4,261,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,601.78 : 12,781,015.80 = 2,840,827.96 : x
  2. Step 2: Convert to fraction form
    8,520,601.78/12,781,015.80 = 2,840,827.96/x
  3. Step 3: Cross multiply
    8,520,601.78x = 12,781,015.80 × 2,840,827.96
  4. Step 4: Simplify right side
    8,520,601.78x = 36,308,667,041,841.77
  5. Step 5: Solve for x
    x = 36,308,667,041,841.77/8,520,601.78
  6. Step 6: Final answer
    x = 4,261,279.66

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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.