Home / 5,120,371.63-7,680,529.68-2,087,725.69

Finding the Fourth Proportional to 5,120,371.63, 7,680,529.68 and 2,087,725.69

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Solution

The fourth proportional to 5,120,371.63, 7,680,529.68 and 2,087,725.69 is: 3,131,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,371.63 : 7,680,529.68 = 2,087,725.69 : x
  2. Step 2: Convert to fraction form
    5,120,371.63/7,680,529.68 = 2,087,725.69/x
  3. Step 3: Cross multiply
    5,120,371.63x = 7,680,529.68 × 2,087,725.69
  4. Step 4: Simplify right side
    5,120,371.63x = 16,034,839,125,743.48
  5. Step 5: Solve for x
    x = 16,034,839,125,743.48/5,120,371.63
  6. Step 6: Final answer
    x = 3,131,577.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.