Home / 30,004,440.78-41,412,789.40-18,241,209.61

Finding the Fourth Proportional to 30,004,440.78, 41,412,789.40 and 18,241,209.61

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Solution

The fourth proportional to 30,004,440.78, 41,412,789.40 and 18,241,209.61 is: 25,176,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,004,440.78 : 41,412,789.40 = 18,241,209.61 : x
  2. Step 2: Convert to fraction form
    30,004,440.78/41,412,789.40 = 18,241,209.61/x
  3. Step 3: Cross multiply
    30,004,440.78x = 41,412,789.40 × 18,241,209.61
  4. Step 4: Simplify right side
    30,004,440.78x = 755,419,371,888,980.12
  5. Step 5: Solve for x
    x = 755,419,371,888,980.12/30,004,440.78
  6. Step 6: Final answer
    x = 25,176,918.89

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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.