Home / 12,749,815.71-17,593,265.49-7,785,763.11

Finding the Fourth Proportional to 12,749,815.71, 17,593,265.49 and 7,785,763.11

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Solution

The fourth proportional to 12,749,815.71, 17,593,265.49 and 7,785,763.11 is: 10,743,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749,815.71 : 17,593,265.49 = 7,785,763.11 : x
  2. Step 2: Convert to fraction form
    12,749,815.71/17,593,265.49 = 7,785,763.11/x
  3. Step 3: Cross multiply
    12,749,815.71x = 17,593,265.49 × 7,785,763.11
  4. Step 4: Simplify right side
    12,749,815.71x = 136,976,997,436,478.06
  5. Step 5: Solve for x
    x = 136,976,997,436,478.06/12,749,815.71
  6. Step 6: Final answer
    x = 10,743,449.20

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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.