Home / 315,202,903.20-472,166,625.60-218,268,064.80

Finding the Fourth Proportional to 315,202,903.20, 472,166,625.60 and 218,268,064.80

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Solution

The fourth proportional to 315,202,903.20, 472,166,625.60 and 218,268,064.80 is: 326,960,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,903.20 : 472,166,625.60 = 218,268,064.80 : x
  2. Step 2: Convert to fraction form
    315,202,903.20/472,166,625.60 = 218,268,064.80/x
  3. Step 3: Cross multiply
    315,202,903.20x = 472,166,625.60 × 218,268,064.80
  4. Step 4: Simplify right side
    315,202,903.20x = 103,058,895,632,858,144
  5. Step 5: Solve for x
    x = 103,058,895,632,858,144/315,202,903.20
  6. Step 6: Final answer
    x = 326,960,489.85

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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.