Home / 20,453,866.40-28,203,447.72-16,721,046.74

Finding the Fourth Proportional to 20,453,866.40, 28,203,447.72 and 16,721,046.74

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Solution

The fourth proportional to 20,453,866.40, 28,203,447.72 and 16,721,046.74 is: 23,056,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453,866.40 : 28,203,447.72 = 16,721,046.74 : x
  2. Step 2: Convert to fraction form
    20,453,866.40/28,203,447.72 = 16,721,046.74/x
  3. Step 3: Cross multiply
    20,453,866.40x = 28,203,447.72 × 16,721,046.74
  4. Step 4: Simplify right side
    20,453,866.40x = 471,591,167,555,266.44
  5. Step 5: Solve for x
    x = 471,591,167,555,266.44/20,453,866.40
  6. Step 6: Final answer
    x = 23,056,333.62

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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.