Home / 315,043,612.20-472,565,418.30-272,576,284.20

Finding the Fourth Proportional to 315,043,612.20, 472,565,418.30 and 272,576,284.20

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Solution

The fourth proportional to 315,043,612.20, 472,565,418.30 and 272,576,284.20 is: 408,864,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043,612.20 : 472,565,418.30 = 272,576,284.20 : x
  2. Step 2: Convert to fraction form
    315,043,612.20/472,565,418.30 = 272,576,284.20/x
  3. Step 3: Cross multiply
    315,043,612.20x = 472,565,418.30 × 272,576,284.20
  4. Step 4: Simplify right side
    315,043,612.20x = 128,810,125,761,632,672
  5. Step 5: Solve for x
    x = 128,810,125,761,632,672/315,043,612.20
  6. Step 6: Final answer
    x = 408,864,426.30

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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.