Home / 13,591,989.30-18,757,380.69-7,791,870.90

Finding the Fourth Proportional to 13,591,989.30, 18,757,380.69 and 7,791,870.90

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Solution

The fourth proportional to 13,591,989.30, 18,757,380.69 and 7,791,870.90 is: 10,753,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591,989.30 : 18,757,380.69 = 7,791,870.90 : x
  2. Step 2: Convert to fraction form
    13,591,989.30/18,757,380.69 = 7,791,870.90/x
  3. Step 3: Cross multiply
    13,591,989.30x = 18,757,380.69 × 7,791,870.90
  4. Step 4: Simplify right side
    13,591,989.30x = 146,155,088,758,632.94
  5. Step 5: Solve for x
    x = 146,155,088,758,632.94/13,591,989.30
  6. Step 6: Final answer
    x = 10,753,031.48

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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.