Home / 15,711,887.40-21,682,195.80-8,836,369.20

Finding the Fourth Proportional to 15,711,887.40, 21,682,195.80 and 8,836,369.20

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Solution

The fourth proportional to 15,711,887.40, 21,682,195.80 and 8,836,369.20 is: 12,194,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711,887.40 : 21,682,195.80 = 8,836,369.20 : x
  2. Step 2: Convert to fraction form
    15,711,887.40/21,682,195.80 = 8,836,369.20/x
  3. Step 3: Cross multiply
    15,711,887.40x = 21,682,195.80 × 8,836,369.20
  4. Step 4: Simplify right side
    15,711,887.40x = 191,591,887,155,489.34
  5. Step 5: Solve for x
    x = 191,591,887,155,489.34/15,711,887.40
  6. Step 6: Final answer
    x = 12,194,072.06

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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.