Home / 12,877,943.18-17,767,686.22-7,719,422.54

Finding the Fourth Proportional to 12,877,943.18, 17,767,686.22 and 7,719,422.54

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Solution

The fourth proportional to 12,877,943.18, 17,767,686.22 and 7,719,422.54 is: 10,650,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877,943.18 : 17,767,686.22 = 7,719,422.54 : x
  2. Step 2: Convert to fraction form
    12,877,943.18/17,767,686.22 = 7,719,422.54/x
  3. Step 3: Cross multiply
    12,877,943.18x = 17,767,686.22 × 7,719,422.54
  4. Step 4: Simplify right side
    12,877,943.18x = 137,156,277,382,178.42
  5. Step 5: Solve for x
    x = 137,156,277,382,178.42/12,877,943.18
  6. Step 6: Final answer
    x = 10,650,480.09

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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.