Home / 7,948,996.80-11,931,405.60-3,690,129.60

Finding the Fourth Proportional to 7,948,996.80, 11,931,405.60 and 3,690,129.60

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Solution

The fourth proportional to 7,948,996.80, 11,931,405.60 and 3,690,129.60 is: 5,538,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948,996.80 : 11,931,405.60 = 3,690,129.60 : x
  2. Step 2: Convert to fraction form
    7,948,996.80/11,931,405.60 = 3,690,129.60/x
  3. Step 3: Cross multiply
    7,948,996.80x = 11,931,405.60 × 3,690,129.60
  4. Step 4: Simplify right side
    7,948,996.80x = 44,028,432,974,165.76
  5. Step 5: Solve for x
    x = 44,028,432,974,165.76/7,948,996.80
  6. Step 6: Final answer
    x = 5,538,866.61

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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.