Home / 12,905,161.10-17,809,117.22-7,103,912.75

Finding the Fourth Proportional to 12,905,161.10, 17,809,117.22 and 7,103,912.75

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Solution

The fourth proportional to 12,905,161.10, 17,809,117.22 and 7,103,912.75 is: 9,803,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,161.10 : 17,809,117.22 = 7,103,912.75 : x
  2. Step 2: Convert to fraction form
    12,905,161.10/17,809,117.22 = 7,103,912.75/x
  3. Step 3: Cross multiply
    12,905,161.10x = 17,809,117.22 × 7,103,912.75
  4. Step 4: Simplify right side
    12,905,161.10x = 126,514,414,849,882.98
  5. Step 5: Solve for x
    x = 126,514,414,849,882.98/12,905,161.10
  6. Step 6: Final answer
    x = 9,803,396.79

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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.