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Finding the Fourth Proportional to 8,686,797.71, 11,988,348.80 and 5,015,869.02

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Solution

The fourth proportional to 8,686,797.71, 11,988,348.80 and 5,015,869.02 is: 6,922,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686,797.71 : 11,988,348.80 = 5,015,869.02 : x
  2. Step 2: Convert to fraction form
    8,686,797.71/11,988,348.80 = 5,015,869.02/x
  3. Step 3: Cross multiply
    8,686,797.71x = 11,988,348.80 × 5,015,869.02
  4. Step 4: Simplify right side
    8,686,797.71x = 60,131,987,321,794.83
  5. Step 5: Solve for x
    x = 60,131,987,321,794.83/8,686,797.71
  6. Step 6: Final answer
    x = 6,922,227.20

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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.