Home / 10,378,864.29-15,569,782.25-3,191,001.78

Finding the Fourth Proportional to 10,378,864.29, 15,569,782.25 and 3,191,001.78

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Solution

The fourth proportional to 10,378,864.29, 15,569,782.25 and 3,191,001.78 is: 4,786,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378,864.29 : 15,569,782.25 = 3,191,001.78 : x
  2. Step 2: Convert to fraction form
    10,378,864.29/15,569,782.25 = 3,191,001.78/x
  3. Step 3: Cross multiply
    10,378,864.29x = 15,569,782.25 × 3,191,001.78
  4. Step 4: Simplify right side
    10,378,864.29x = 49,683,202,858,007.39
  5. Step 5: Solve for x
    x = 49,683,202,858,007.39/10,378,864.29
  6. Step 6: Final answer
    x = 4,786,959.49

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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.