Home / 5,129,329.91-7,078,449.50-2,806,180.35

Finding the Fourth Proportional to 5,129,329.91, 7,078,449.50 and 2,806,180.35

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Solution

The fourth proportional to 5,129,329.91, 7,078,449.50 and 2,806,180.35 is: 3,872,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129,329.91 : 7,078,449.50 = 2,806,180.35 : x
  2. Step 2: Convert to fraction form
    5,129,329.91/7,078,449.50 = 2,806,180.35/x
  3. Step 3: Cross multiply
    5,129,329.91x = 7,078,449.50 × 2,806,180.35
  4. Step 4: Simplify right side
    5,129,329.91x = 19,863,405,865,315.41
  5. Step 5: Solve for x
    x = 19,863,405,865,315.41/5,129,329.91
  6. Step 6: Final answer
    x = 3,872,514.78

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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.