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Finding the Fourth Proportional to 272,187,286.20, 408,280,929.30 and 272,187,286.20

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Solution

The fourth proportional to 272,187,286.20, 408,280,929.30 and 272,187,286.20 is: 408,280,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,187,286.20 : 408,280,929.30 = 272,187,286.20 : x
  2. Step 2: Convert to fraction form
    272,187,286.20/408,280,929.30 = 272,187,286.20/x
  3. Step 3: Cross multiply
    272,187,286.20x = 408,280,929.30 × 272,187,286.20
  4. Step 4: Simplify right side
    272,187,286.20x = 111,128,878,153,381,072
  5. Step 5: Solve for x
    x = 111,128,878,153,381,072/272,187,286.20
  6. Step 6: Final answer
    x = 408,280,929.30

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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.