Home / 315,202,920.70-472,166,651.85-218,268,082.30

Finding the Fourth Proportional to 315,202,920.70, 472,166,651.85 and 218,268,082.30

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Solution

The fourth proportional to 315,202,920.70, 472,166,651.85 and 218,268,082.30 is: 326,960,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,920.70 : 472,166,651.85 = 218,268,082.30 : x
  2. Step 2: Convert to fraction form
    315,202,920.70/472,166,651.85 = 218,268,082.30/x
  3. Step 3: Cross multiply
    315,202,920.70x = 472,166,651.85 × 218,268,082.30
  4. Step 4: Simplify right side
    315,202,920.70x = 103,058,909,625,311,264
  5. Step 5: Solve for x
    x = 103,058,909,625,311,264/315,202,920.70
  6. Step 6: Final answer
    x = 326,960,516.09

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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.