Home / 20,422,453.78-28,183,986.02-11,484,377.52

Finding the Fourth Proportional to 20,422,453.78, 28,183,986.02 and 11,484,377.52

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Solution

The fourth proportional to 20,422,453.78, 28,183,986.02 and 11,484,377.52 is: 15,849,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,453.78 : 28,183,986.02 = 11,484,377.52 : x
  2. Step 2: Convert to fraction form
    20,422,453.78/28,183,986.02 = 11,484,377.52/x
  3. Step 3: Cross multiply
    20,422,453.78x = 28,183,986.02 × 11,484,377.52
  4. Step 4: Simplify right side
    20,422,453.78x = 323,675,535,472,082.25
  5. Step 5: Solve for x
    x = 323,675,535,472,082.25/20,422,453.78
  6. Step 6: Final answer
    x = 15,849,003.21

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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.