Home / 217,812,138.90-326,718,208.35-168,494,414.10

Finding the Fourth Proportional to 217,812,138.90, 326,718,208.35 and 168,494,414.10

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Solution

The fourth proportional to 217,812,138.90, 326,718,208.35 and 168,494,414.10 is: 252,741,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,812,138.90 : 326,718,208.35 = 168,494,414.10 : x
  2. Step 2: Convert to fraction form
    217,812,138.90/326,718,208.35 = 168,494,414.10/x
  3. Step 3: Cross multiply
    217,812,138.90x = 326,718,208.35 × 168,494,414.10
  4. Step 4: Simplify right side
    217,812,138.90x = 55,050,193,091,734,976
  5. Step 5: Solve for x
    x = 55,050,193,091,734,976/217,812,138.90
  6. Step 6: Final answer
    x = 252,741,621.15

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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.