Home / 12,587,879.20-17,370,768.72-7,432,900.96

Finding the Fourth Proportional to 12,587,879.20, 17,370,768.72 and 7,432,900.96

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Solution

The fourth proportional to 12,587,879.20, 17,370,768.72 and 7,432,900.96 is: 10,257,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587,879.20 : 17,370,768.72 = 7,432,900.96 : x
  2. Step 2: Convert to fraction form
    12,587,879.20/17,370,768.72 = 7,432,900.96/x
  3. Step 3: Cross multiply
    12,587,879.20x = 17,370,768.72 × 7,432,900.96
  4. Step 4: Simplify right side
    12,587,879.20x = 129,115,203,494,825.97
  5. Step 5: Solve for x
    x = 129,115,203,494,825.97/12,587,879.20
  6. Step 6: Final answer
    x = 10,257,105.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.