Home / 20,566,474.74-28,381,329.18-11,274,064.83

Finding the Fourth Proportional to 20,566,474.74, 28,381,329.18 and 11,274,064.83

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Solution

The fourth proportional to 20,566,474.74, 28,381,329.18 and 11,274,064.83 is: 15,557,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566,474.74 : 28,381,329.18 = 11,274,064.83 : x
  2. Step 2: Convert to fraction form
    20,566,474.74/28,381,329.18 = 11,274,064.83/x
  3. Step 3: Cross multiply
    20,566,474.74x = 28,381,329.18 × 11,274,064.83
  4. Step 4: Simplify right side
    20,566,474.74x = 319,972,945,136,890.75
  5. Step 5: Solve for x
    x = 319,972,945,136,890.75/20,566,474.74
  6. Step 6: Final answer
    x = 15,557,986.93

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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.