Home / 20,488,164.56-28,273,256.52-11,320,571.60

Finding the Fourth Proportional to 20,488,164.56, 28,273,256.52 and 11,320,571.60

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Solution

The fourth proportional to 20,488,164.56, 28,273,256.52 and 11,320,571.60 is: 15,622,161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,164.56 : 28,273,256.52 = 11,320,571.60 : x
  2. Step 2: Convert to fraction form
    20,488,164.56/28,273,256.52 = 11,320,571.60/x
  3. Step 3: Cross multiply
    20,488,164.56x = 28,273,256.52 × 11,320,571.60
  4. Step 4: Simplify right side
    20,488,164.56x = 320,069,424,799,826.81
  5. Step 5: Solve for x
    x = 320,069,424,799,826.81/20,488,164.56
  6. Step 6: Final answer
    x = 15,622,161.95

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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.