Home / 20,278,413-30,421,433.09-8,148,838.07

Finding the Fourth Proportional to 20,278,413, 30,421,433.09 and 8,148,838.07

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Solution

The fourth proportional to 20,278,413, 30,421,433.09 and 8,148,838.07 is: 12,224,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,413 : 30,421,433.09 = 8,148,838.07 : x
  2. Step 2: Convert to fraction form
    20,278,413/30,421,433.09 = 8,148,838.07/x
  3. Step 3: Cross multiply
    20,278,413x = 30,421,433.09 × 8,148,838.07
  4. Step 4: Simplify right side
    20,278,413x = 247,899,332,204,175.41
  5. Step 5: Solve for x
    x = 247,899,332,204,175.41/20,278,413
  6. Step 6: Final answer
    x = 12,224,789.59

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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.