Home / 20,286,654.22-27,998,587.65-12,845,008

Finding the Fourth Proportional to 20,286,654.22, 27,998,587.65 and 12,845,008

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Solution

The fourth proportional to 20,286,654.22, 27,998,587.65 and 12,845,008 is: 17,728,013.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286,654.22 : 27,998,587.65 = 12,845,008 : x
  2. Step 2: Convert to fraction form
    20,286,654.22/27,998,587.65 = 12,845,008/x
  3. Step 3: Cross multiply
    20,286,654.22x = 27,998,587.65 × 12,845,008
  4. Step 4: Simplify right side
    20,286,654.22x = 359,642,082,352,951.19
  5. Step 5: Solve for x
    x = 359,642,082,352,951.19/20,286,654.22
  6. Step 6: Final answer
    x = 17,728,013.62

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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.