Home / 12,947,974.21-17,868,205.97-7,146,757.52

Finding the Fourth Proportional to 12,947,974.21, 17,868,205.97 and 7,146,757.52

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Solution

The fourth proportional to 12,947,974.21, 17,868,205.97 and 7,146,757.52 is: 9,862,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,974.21 : 17,868,205.97 = 7,146,757.52 : x
  2. Step 2: Convert to fraction form
    12,947,974.21/17,868,205.97 = 7,146,757.52/x
  3. Step 3: Cross multiply
    12,947,974.21x = 17,868,205.97 × 7,146,757.52
  4. Step 4: Simplify right side
    12,947,974.21x = 127,699,735,385,006.38
  5. Step 5: Solve for x
    x = 127,699,735,385,006.38/12,947,974.21
  6. Step 6: Final answer
    x = 9,862,526.24

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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.