Home / 20,515,047.20-30,775,335.60-7,056,000.80

Finding the Fourth Proportional to 20,515,047.20, 30,775,335.60 and 7,056,000.80

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Solution

The fourth proportional to 20,515,047.20, 30,775,335.60 and 7,056,000.80 is: 10,584,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,047.20 : 30,775,335.60 = 7,056,000.80 : x
  2. Step 2: Convert to fraction form
    20,515,047.20/30,775,335.60 = 7,056,000.80/x
  3. Step 3: Cross multiply
    20,515,047.20x = 30,775,335.60 × 7,056,000.80
  4. Step 4: Simplify right side
    20,515,047.20x = 217,150,792,613,868.50
  5. Step 5: Solve for x
    x = 217,150,792,613,868.50/20,515,047.20
  6. Step 6: Final answer
    x = 10,584,952.13

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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.