Home / 18,263,545.20-25,152,324.12-15,179,816.88

Finding the Fourth Proportional to 18,263,545.20, 25,152,324.12 and 15,179,816.88

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Solution

The fourth proportional to 18,263,545.20, 25,152,324.12 and 15,179,816.88 is: 20,905,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,263,545.20 : 25,152,324.12 = 15,179,816.88 : x
  2. Step 2: Convert to fraction form
    18,263,545.20/25,152,324.12 = 15,179,816.88/x
  3. Step 3: Cross multiply
    18,263,545.20x = 25,152,324.12 × 15,179,816.88
  4. Step 4: Simplify right side
    18,263,545.20x = 381,807,674,248,007.19
  5. Step 5: Solve for x
    x = 381,807,674,248,007.19/18,263,545.20
  6. Step 6: Final answer
    x = 20,905,452.37

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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.