Home / 12,948,279.92-17,868,627.36-7,147,063.16

Finding the Fourth Proportional to 12,948,279.92, 17,868,627.36 and 7,147,063.16

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Solution

The fourth proportional to 12,948,279.92, 17,868,627.36 and 7,147,063.16 is: 9,862,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,279.92 : 17,868,627.36 = 7,147,063.16 : x
  2. Step 2: Convert to fraction form
    12,948,279.92/17,868,627.36 = 7,147,063.16/x
  3. Step 3: Cross multiply
    12,948,279.92x = 17,868,627.36 × 7,147,063.16
  4. Step 4: Simplify right side
    12,948,279.92x = 127,708,208,324,424.06
  5. Step 5: Solve for x
    x = 127,708,208,324,424.06/12,948,279.92
  6. Step 6: Final answer
    x = 9,862,947.75

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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.