Home / 20,793,648.10-31,187,519.70-7,147,424.20

Finding the Fourth Proportional to 20,793,648.10, 31,187,519.70 and 7,147,424.20

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Solution

The fourth proportional to 20,793,648.10, 31,187,519.70 and 7,147,424.20 is: 10,720,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,648.10 : 31,187,519.70 = 7,147,424.20 : x
  2. Step 2: Convert to fraction form
    20,793,648.10/31,187,519.70 = 7,147,424.20/x
  3. Step 3: Cross multiply
    20,793,648.10x = 31,187,519.70 × 7,147,424.20
  4. Step 4: Simplify right side
    20,793,648.10x = 222,910,433,041,756.75
  5. Step 5: Solve for x
    x = 222,910,433,041,756.75/20,793,648.10
  6. Step 6: Final answer
    x = 10,720,121.45

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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.