Home / 12,982,917.28-19,476,147.30-5,408,111.56

Finding the Fourth Proportional to 12,982,917.28, 19,476,147.30 and 5,408,111.56

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Solution

The fourth proportional to 12,982,917.28, 19,476,147.30 and 5,408,111.56 is: 8,112,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,917.28 : 19,476,147.30 = 5,408,111.56 : x
  2. Step 2: Convert to fraction form
    12,982,917.28/19,476,147.30 = 5,408,111.56/x
  3. Step 3: Cross multiply
    12,982,917.28x = 19,476,147.30 × 5,408,111.56
  4. Step 4: Simplify right side
    12,982,917.28x = 105,329,177,357,392.78
  5. Step 5: Solve for x
    x = 105,329,177,357,392.78/12,982,917.28
  6. Step 6: Final answer
    x = 8,112,905.22

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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.