Home / 12,261,882.64-16,921,401.24-7,108,243.60

Finding the Fourth Proportional to 12,261,882.64, 16,921,401.24 and 7,108,243.60

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Solution

The fourth proportional to 12,261,882.64, 16,921,401.24 and 7,108,243.60 is: 9,809,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261,882.64 : 16,921,401.24 = 7,108,243.60 : x
  2. Step 2: Convert to fraction form
    12,261,882.64/16,921,401.24 = 7,108,243.60/x
  3. Step 3: Cross multiply
    12,261,882.64x = 16,921,401.24 × 7,108,243.60
  4. Step 4: Simplify right side
    12,261,882.64x = 120,281,442,067,262.05
  5. Step 5: Solve for x
    x = 120,281,442,067,262.05/12,261,882.64
  6. Step 6: Final answer
    x = 9,809,378.02

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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.