Home / 27,986,358.78-38,619,476.15-15,426,863.01

Finding the Fourth Proportional to 27,986,358.78, 38,619,476.15 and 15,426,863.01

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Solution

The fourth proportional to 27,986,358.78, 38,619,476.15 and 15,426,863.01 is: 21,288,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986,358.78 : 38,619,476.15 = 15,426,863.01 : x
  2. Step 2: Convert to fraction form
    27,986,358.78/38,619,476.15 = 15,426,863.01/x
  3. Step 3: Cross multiply
    27,986,358.78x = 38,619,476.15 × 15,426,863.01
  4. Step 4: Simplify right side
    27,986,358.78x = 595,777,368,006,878
  5. Step 5: Solve for x
    x = 595,777,368,006,878/27,986,358.78
  6. Step 6: Final answer
    x = 21,288,134.43

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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.