Home / 18,712,787.96-25,823,862.78-10,977,961.88

Finding the Fourth Proportional to 18,712,787.96, 25,823,862.78 and 10,977,961.88

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Solution

The fourth proportional to 18,712,787.96, 25,823,862.78 and 10,977,961.88 is: 15,149,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,787.96 : 25,823,862.78 = 10,977,961.88 : x
  2. Step 2: Convert to fraction form
    18,712,787.96/25,823,862.78 = 10,977,961.88/x
  3. Step 3: Cross multiply
    18,712,787.96x = 25,823,862.78 × 10,977,961.88
  4. Step 4: Simplify right side
    18,712,787.96x = 283,493,381,193,190.88
  5. Step 5: Solve for x
    x = 283,493,381,193,190.88/18,712,787.96
  6. Step 6: Final answer
    x = 15,149,713.76

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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.