Home / 12,543,218.92-17,317,063.16-7,900,983.15

Finding the Fourth Proportional to 12,543,218.92, 17,317,063.16 and 7,900,983.15

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Solution

The fourth proportional to 12,543,218.92, 17,317,063.16 and 7,900,983.15 is: 10,908,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,218.92 : 17,317,063.16 = 7,900,983.15 : x
  2. Step 2: Convert to fraction form
    12,543,218.92/17,317,063.16 = 7,900,983.15/x
  3. Step 3: Cross multiply
    12,543,218.92x = 17,317,063.16 × 7,900,983.15
  4. Step 4: Simplify right side
    12,543,218.92x = 136,821,824,234,645.77
  5. Step 5: Solve for x
    x = 136,821,824,234,645.77/12,543,218.92
  6. Step 6: Final answer
    x = 10,908,031.27

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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.