Home / 315,202,891.20-472,166,607.60-218,268,052.80

Finding the Fourth Proportional to 315,202,891.20, 472,166,607.60 and 218,268,052.80

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Solution

The fourth proportional to 315,202,891.20, 472,166,607.60 and 218,268,052.80 is: 326,960,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,891.20 : 472,166,607.60 = 218,268,052.80 : x
  2. Step 2: Convert to fraction form
    315,202,891.20/472,166,607.60 = 218,268,052.80/x
  3. Step 3: Cross multiply
    315,202,891.20x = 472,166,607.60 × 218,268,052.80
  4. Step 4: Simplify right side
    315,202,891.20x = 103,058,886,038,033,696
  5. Step 5: Solve for x
    x = 103,058,886,038,033,696/315,202,891.20
  6. Step 6: Final answer
    x = 326,960,471.86

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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.