Home / 12,872,896.84-17,766,139.62-7,716,086.92

Finding the Fourth Proportional to 12,872,896.84, 17,766,139.62 and 7,716,086.92

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Solution

The fourth proportional to 12,872,896.84, 17,766,139.62 and 7,716,086.92 is: 10,649,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,896.84 : 17,766,139.62 = 7,716,086.92 : x
  2. Step 2: Convert to fraction form
    12,872,896.84/17,766,139.62 = 7,716,086.92/x
  3. Step 3: Cross multiply
    12,872,896.84x = 17,766,139.62 × 7,716,086.92
  4. Step 4: Simplify right side
    12,872,896.84x = 137,085,077,540,775.78
  5. Step 5: Solve for x
    x = 137,085,077,540,775.78/12,872,896.84
  6. Step 6: Final answer
    x = 10,649,124.22

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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.