Home / 7,515,793.80-11,273,690.70-6,439,625.78

Finding the Fourth Proportional to 7,515,793.80, 11,273,690.70 and 6,439,625.78

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Solution

The fourth proportional to 7,515,793.80, 11,273,690.70 and 6,439,625.78 is: 9,659,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515,793.80 : 11,273,690.70 = 6,439,625.78 : x
  2. Step 2: Convert to fraction form
    7,515,793.80/11,273,690.70 = 6,439,625.78/x
  3. Step 3: Cross multiply
    7,515,793.80x = 11,273,690.70 × 6,439,625.78
  4. Step 4: Simplify right side
    7,515,793.80x = 72,598,349,211,097.80
  5. Step 5: Solve for x
    x = 72,598,349,211,097.80/7,515,793.80
  6. Step 6: Final answer
    x = 9,659,438.66

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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.