Home / 10,378,863.79-15,569,781.50-3,191,001.28

Finding the Fourth Proportional to 10,378,863.79, 15,569,781.50 and 3,191,001.28

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Solution

The fourth proportional to 10,378,863.79, 15,569,781.50 and 3,191,001.28 is: 4,786,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378,863.79 : 15,569,781.50 = 3,191,001.28 : x
  2. Step 2: Convert to fraction form
    10,378,863.79/15,569,781.50 = 3,191,001.28/x
  3. Step 3: Cross multiply
    10,378,863.79x = 15,569,781.50 × 3,191,001.28
  4. Step 4: Simplify right side
    10,378,863.79x = 49,683,192,695,820.32
  5. Step 5: Solve for x
    x = 49,683,192,695,820.32/10,378,863.79
  6. Step 6: Final answer
    x = 4,786,958.74

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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.