Home / 78,173,445.66-117,278,183.16-27,055,465.08

Finding the Fourth Proportional to 78,173,445.66, 117,278,183.16 and 27,055,465.08

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Solution

The fourth proportional to 78,173,445.66, 117,278,183.16 and 27,055,465.08 is: 40,589,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,173,445.66 : 117,278,183.16 = 27,055,465.08 : x
  2. Step 2: Convert to fraction form
    78,173,445.66/117,278,183.16 = 27,055,465.08/x
  3. Step 3: Cross multiply
    78,173,445.66x = 117,278,183.16 × 27,055,465.08
  4. Step 4: Simplify right side
    78,173,445.66x = 3,173,015,789,131,223.50
  5. Step 5: Solve for x
    x = 3,173,015,789,131,223.50/78,173,445.66
  6. Step 6: Final answer
    x = 40,589,432.41

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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.