Home / 7,800,435.60-11,686,656.60-6,680,691.60

Finding the Fourth Proportional to 7,800,435.60, 11,686,656.60 and 6,680,691.60

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Solution

The fourth proportional to 7,800,435.60, 11,686,656.60 and 6,680,691.60 is: 10,009,049.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,435.60 : 11,686,656.60 = 6,680,691.60 : x
  2. Step 2: Convert to fraction form
    7,800,435.60/11,686,656.60 = 6,680,691.60/x
  3. Step 3: Cross multiply
    7,800,435.60x = 11,686,656.60 × 6,680,691.60
  4. Step 4: Simplify right side
    7,800,435.60x = 78,074,948,579,704.55
  5. Step 5: Solve for x
    x = 78,074,948,579,704.55/7,800,435.60
  6. Step 6: Final answer
    x = 10,009,049.83

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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.