Home / 18,816,788.67-25,918,785.64-13,300,680.20

Finding the Fourth Proportional to 18,816,788.67, 25,918,785.64 and 13,300,680.20

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Solution

The fourth proportional to 18,816,788.67, 25,918,785.64 and 13,300,680.20 is: 18,320,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816,788.67 : 25,918,785.64 = 13,300,680.20 : x
  2. Step 2: Convert to fraction form
    18,816,788.67/25,918,785.64 = 13,300,680.20/x
  3. Step 3: Cross multiply
    18,816,788.67x = 25,918,785.64 × 13,300,680.20
  4. Step 4: Simplify right side
    18,816,788.67x = 344,737,478,969,992.31
  5. Step 5: Solve for x
    x = 344,737,478,969,992.31/18,816,788.67
  6. Step 6: Final answer
    x = 18,320,739.26

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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.