Home / 480,334,832.25-720,360,906.40-217,867,538.49

Finding the Fourth Proportional to 480,334,832.25, 720,360,906.40 and 217,867,538.49

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Solution

The fourth proportional to 480,334,832.25, 720,360,906.40 and 217,867,538.49 is: 326,737,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,334,832.25 : 720,360,906.40 = 217,867,538.49 : x
  2. Step 2: Convert to fraction form
    480,334,832.25/720,360,906.40 = 217,867,538.49/x
  3. Step 3: Cross multiply
    480,334,832.25x = 720,360,906.40 × 217,867,538.49
  4. Step 4: Simplify right side
    480,334,832.25x = 156,943,257,501,793,280
  5. Step 5: Solve for x
    x = 156,943,257,501,793,280/480,334,832.25
  6. Step 6: Final answer
    x = 326,737,198.65

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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.