Home / 20,123,456.24-27,772,879-11,424,445.04

Finding the Fourth Proportional to 20,123,456.24, 27,772,879 and 11,424,445.04

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Solution

The fourth proportional to 20,123,456.24, 27,772,879 and 11,424,445.04 is: 15,767,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,456.24 : 27,772,879 = 11,424,445.04 : x
  2. Step 2: Convert to fraction form
    20,123,456.24/27,772,879 = 11,424,445.04/x
  3. Step 3: Cross multiply
    20,123,456.24x = 27,772,879 × 11,424,445.04
  4. Step 4: Simplify right side
    20,123,456.24x = 317,289,729,738,070.12
  5. Step 5: Solve for x
    x = 317,289,729,738,070.12/20,123,456.24
  6. Step 6: Final answer
    x = 15,767,158.78

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1.5x scale

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.