Home / 18,687,649.30-28,035,833.07-6,391,707.75

Finding the Fourth Proportional to 18,687,649.30, 28,035,833.07 and 6,391,707.75

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Solution

The fourth proportional to 18,687,649.30, 28,035,833.07 and 6,391,707.75 is: 9,589,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,649.30 : 28,035,833.07 = 6,391,707.75 : x
  2. Step 2: Convert to fraction form
    18,687,649.30/28,035,833.07 = 6,391,707.75/x
  3. Step 3: Cross multiply
    18,687,649.30x = 28,035,833.07 × 6,391,707.75
  4. Step 4: Simplify right side
    18,687,649.30x = 179,196,851,535,194.19
  5. Step 5: Solve for x
    x = 179,196,851,535,194.19/18,687,649.30
  6. Step 6: Final answer
    x = 9,589,052.57

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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.