Home / 9,261,340.75-12,780,481.07-5,131,356.83

Finding the Fourth Proportional to 9,261,340.75, 12,780,481.07 and 5,131,356.83

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Solution

The fourth proportional to 9,261,340.75, 12,780,481.07 and 5,131,356.83 is: 7,081,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261,340.75 : 12,780,481.07 = 5,131,356.83 : x
  2. Step 2: Convert to fraction form
    9,261,340.75/12,780,481.07 = 5,131,356.83/x
  3. Step 3: Cross multiply
    9,261,340.75x = 12,780,481.07 × 5,131,356.83
  4. Step 4: Simplify right side
    9,261,340.75x = 65,581,208,778,156.20
  5. Step 5: Solve for x
    x = 65,581,208,778,156.20/9,261,340.75
  6. Step 6: Final answer
    x = 7,081,178.69

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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.