Home / 315,043,823.20-472,565,734.80-272,576,495.20

Finding the Fourth Proportional to 315,043,823.20, 472,565,734.80 and 272,576,495.20

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Solution

The fourth proportional to 315,043,823.20, 472,565,734.80 and 272,576,495.20 is: 408,864,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043,823.20 : 472,565,734.80 = 272,576,495.20 : x
  2. Step 2: Convert to fraction form
    315,043,823.20/472,565,734.80 = 272,576,495.20/x
  3. Step 3: Cross multiply
    315,043,823.20x = 472,565,734.80 × 272,576,495.20
  4. Step 4: Simplify right side
    315,043,823.20x = 128,810,311,743,396,672
  5. Step 5: Solve for x
    x = 128,810,311,743,396,672/315,043,823.20
  6. Step 6: Final answer
    x = 408,864,742.80

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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.