Home / 13,614,595.20-18,789,029.28-7,815,254.40

Finding the Fourth Proportional to 13,614,595.20, 18,789,029.28 and 7,815,254.40

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Solution

The fourth proportional to 13,614,595.20, 18,789,029.28 and 7,815,254.40 is: 10,785,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614,595.20 : 18,789,029.28 = 7,815,254.40 : x
  2. Step 2: Convert to fraction form
    13,614,595.20/18,789,029.28 = 7,815,254.40/x
  3. Step 3: Cross multiply
    13,614,595.20x = 18,789,029.28 × 7,815,254.40
  4. Step 4: Simplify right side
    13,614,595.20x = 146,841,043,752,248.84
  5. Step 5: Solve for x
    x = 146,841,043,752,248.84/13,614,595.20
  6. Step 6: Final answer
    x = 10,785,560.76

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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.