Home / 20,670,339.71-28,527,785.06-11,853,241.44

Finding the Fourth Proportional to 20,670,339.71, 28,527,785.06 and 11,853,241.44

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Solution

The fourth proportional to 20,670,339.71, 28,527,785.06 and 11,853,241.44 is: 16,359,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670,339.71 : 28,527,785.06 = 11,853,241.44 : x
  2. Step 2: Convert to fraction form
    20,670,339.71/28,527,785.06 = 11,853,241.44/x
  3. Step 3: Cross multiply
    20,670,339.71x = 28,527,785.06 × 11,853,241.44
  4. Step 4: Simplify right side
    20,670,339.71x = 338,146,724,005,338.69
  5. Step 5: Solve for x
    x = 338,146,724,005,338.69/20,670,339.71
  6. Step 6: Final answer
    x = 16,359,030.81

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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.