Home / 20,802,601.80-28,708,436.61-11,510,020.70

Finding the Fourth Proportional to 20,802,601.80, 28,708,436.61 and 11,510,020.70

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Solution

The fourth proportional to 20,802,601.80, 28,708,436.61 and 11,510,020.70 is: 15,884,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,601.80 : 28,708,436.61 = 11,510,020.70 : x
  2. Step 2: Convert to fraction form
    20,802,601.80/28,708,436.61 = 11,510,020.70/x
  3. Step 3: Cross multiply
    20,802,601.80x = 28,708,436.61 × 11,510,020.70
  4. Step 4: Simplify right side
    20,802,601.80x = 330,434,699,502,195.62
  5. Step 5: Solve for x
    x = 330,434,699,502,195.62/20,802,601.80
  6. Step 6: Final answer
    x = 15,884,296.72

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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.