Home / 8,261,549.60-12,381,768.40-6,664,864.64

Finding the Fourth Proportional to 8,261,549.60, 12,381,768.40 and 6,664,864.64

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Solution

The fourth proportional to 8,261,549.60, 12,381,768.40 and 6,664,864.64 is: 9,988,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261,549.60 : 12,381,768.40 = 6,664,864.64 : x
  2. Step 2: Convert to fraction form
    8,261,549.60/12,381,768.40 = 6,664,864.64/x
  3. Step 3: Cross multiply
    8,261,549.60x = 12,381,768.40 × 6,664,864.64
  4. Step 4: Simplify right side
    8,261,549.60x = 82,522,810,389,829.38
  5. Step 5: Solve for x
    x = 82,522,810,389,829.38/8,261,549.60
  6. Step 6: Final answer
    x = 9,988,781.09

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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.