Home / 20,488,066.56-28,273,121.28-11,320,473.60

Finding the Fourth Proportional to 20,488,066.56, 28,273,121.28 and 11,320,473.60

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Solution

The fourth proportional to 20,488,066.56, 28,273,121.28 and 11,320,473.60 is: 15,622,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,066.56 : 28,273,121.28 = 11,320,473.60 : x
  2. Step 2: Convert to fraction form
    20,488,066.56/28,273,121.28 = 11,320,473.60/x
  3. Step 3: Cross multiply
    20,488,066.56x = 28,273,121.28 × 11,320,473.60
  4. Step 4: Simplify right side
    20,488,066.56x = 320,065,123,039,838.19
  5. Step 5: Solve for x
    x = 320,065,123,039,838.19/20,488,066.56
  6. Step 6: Final answer
    x = 15,622,026.71

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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.