Home / 10,531,279.80-15,761,927.70-7,644,439.80

Finding the Fourth Proportional to 10,531,279.80, 15,761,927.70 and 7,644,439.80

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Solution

The fourth proportional to 10,531,279.80, 15,761,927.70 and 7,644,439.80 is: 11,441,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,279.80 : 15,761,927.70 = 7,644,439.80 : x
  2. Step 2: Convert to fraction form
    10,531,279.80/15,761,927.70 = 7,644,439.80/x
  3. Step 3: Cross multiply
    10,531,279.80x = 15,761,927.70 × 7,644,439.80
  4. Step 4: Simplify right side
    10,531,279.80x = 120,491,107,434,602.45
  5. Step 5: Solve for x
    x = 120,491,107,434,602.45/10,531,279.80
  6. Step 6: Final answer
    x = 11,441,259.73

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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.