Home / 21,027,842.38-29,018,800.38-12,332,286.64

Finding the Fourth Proportional to 21,027,842.38, 29,018,800.38 and 12,332,286.64

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Solution

The fourth proportional to 21,027,842.38, 29,018,800.38 and 12,332,286.64 is: 17,018,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027,842.38 : 29,018,800.38 = 12,332,286.64 : x
  2. Step 2: Convert to fraction form
    21,027,842.38/29,018,800.38 = 12,332,286.64/x
  3. Step 3: Cross multiply
    21,027,842.38x = 29,018,800.38 × 12,332,286.64
  4. Step 4: Simplify right side
    21,027,842.38x = 357,868,164,235,100.94
  5. Step 5: Solve for x
    x = 357,868,164,235,100.94/21,027,842.38
  6. Step 6: Final answer
    x = 17,018,777.19

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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.