Home / 7,128,100.20-10,679,708.70-6,132,772.20

Finding the Fourth Proportional to 7,128,100.20, 10,679,708.70 and 6,132,772.20

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Solution

The fourth proportional to 7,128,100.20, 10,679,708.70 and 6,132,772.20 is: 9,188,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,100.20 : 10,679,708.70 = 6,132,772.20 : x
  2. Step 2: Convert to fraction form
    7,128,100.20/10,679,708.70 = 6,132,772.20/x
  3. Step 3: Cross multiply
    7,128,100.20x = 10,679,708.70 × 6,132,772.20
  4. Step 4: Simplify right side
    7,128,100.20x = 65,496,220,619,458.14
  5. Step 5: Solve for x
    x = 65,496,220,619,458.14/7,128,100.20
  6. Step 6: Final answer
    x = 9,188,453.98

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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.