Home / 20,918,816.60-31,378,785.31-6,541,884.10

Finding the Fourth Proportional to 20,918,816.60, 31,378,785.31 and 6,541,884.10

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Solution

The fourth proportional to 20,918,816.60, 31,378,785.31 and 6,541,884.10 is: 9,813,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,816.60 : 31,378,785.31 = 6,541,884.10 : x
  2. Step 2: Convert to fraction form
    20,918,816.60/31,378,785.31 = 6,541,884.10/x
  3. Step 3: Cross multiply
    20,918,816.60x = 31,378,785.31 × 6,541,884.10
  4. Step 4: Simplify right side
    20,918,816.60x = 205,276,376,744,203.44
  5. Step 5: Solve for x
    x = 205,276,376,744,203.44/20,918,816.60
  6. Step 6: Final answer
    x = 9,813,001.41

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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.