Home / 20,715,472.65-28,589,054.37-11,424,859.95

Finding the Fourth Proportional to 20,715,472.65, 28,589,054.37 and 11,424,859.95

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Solution

The fourth proportional to 20,715,472.65, 28,589,054.37 and 11,424,859.95 is: 15,767,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,472.65 : 28,589,054.37 = 11,424,859.95 : x
  2. Step 2: Convert to fraction form
    20,715,472.65/28,589,054.37 = 11,424,859.95/x
  3. Step 3: Cross multiply
    20,715,472.65x = 28,589,054.37 × 11,424,859.95
  4. Step 4: Simplify right side
    20,715,472.65x = 326,625,942,280,185.50
  5. Step 5: Solve for x
    x = 326,625,942,280,185.50/20,715,472.65
  6. Step 6: Final answer
    x = 15,767,245.47

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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.