Home / 18,879,601.92-28,320,465.60-5,416,080

Finding the Fourth Proportional to 18,879,601.92, 28,320,465.60 and 5,416,080

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Solution

The fourth proportional to 18,879,601.92, 28,320,465.60 and 5,416,080 is: 8,124,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,601.92 : 28,320,465.60 = 5,416,080 : x
  2. Step 2: Convert to fraction form
    18,879,601.92/28,320,465.60 = 5,416,080/x
  3. Step 3: Cross multiply
    18,879,601.92x = 28,320,465.60 × 5,416,080
  4. Step 4: Simplify right side
    18,879,601.92x = 153,385,907,326,848
  5. Step 5: Solve for x
    x = 153,385,907,326,848/18,879,601.92
  6. Step 6: Final answer
    x = 8,124,424.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.