Home / 20,588,200.80-30,889,789.20-7,126,389.60

Finding the Fourth Proportional to 20,588,200.80, 30,889,789.20 and 7,126,389.60

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Solution

The fourth proportional to 20,588,200.80, 30,889,789.20 and 7,126,389.60 is: 10,692,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588,200.80 : 30,889,789.20 = 7,126,389.60 : x
  2. Step 2: Convert to fraction form
    20,588,200.80/30,889,789.20 = 7,126,389.60/x
  3. Step 3: Cross multiply
    20,588,200.80x = 30,889,789.20 × 7,126,389.60
  4. Step 4: Simplify right side
    20,588,200.80x = 220,132,672,501,072.31
  5. Step 5: Solve for x
    x = 220,132,672,501,072.31/20,588,200.80
  6. Step 6: Final answer
    x = 10,692,176.29

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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.