Home / 20,793,647.10-31,187,518.20-7,147,423.20

Finding the Fourth Proportional to 20,793,647.10, 31,187,518.20 and 7,147,423.20

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Solution

The fourth proportional to 20,793,647.10, 31,187,518.20 and 7,147,423.20 is: 10,720,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,647.10 : 31,187,518.20 = 7,147,423.20 : x
  2. Step 2: Convert to fraction form
    20,793,647.10/31,187,518.20 = 7,147,423.20/x
  3. Step 3: Cross multiply
    20,793,647.10x = 31,187,518.20 × 7,147,423.20
  4. Step 4: Simplify right side
    20,793,647.10x = 222,910,391,133,102.25
  5. Step 5: Solve for x
    x = 222,910,391,133,102.25/20,793,647.10
  6. Step 6: Final answer
    x = 10,720,119.95

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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.