Home / 272,173,765.20-408,260,647.80-90,420,943.20

Finding the Fourth Proportional to 272,173,765.20, 408,260,647.80 and 90,420,943.20

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Solution

The fourth proportional to 272,173,765.20, 408,260,647.80 and 90,420,943.20 is: 135,631,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,173,765.20 : 408,260,647.80 = 90,420,943.20 : x
  2. Step 2: Convert to fraction form
    272,173,765.20/408,260,647.80 = 90,420,943.20/x
  3. Step 3: Cross multiply
    272,173,765.20x = 408,260,647.80 × 90,420,943.20
  4. Step 4: Simplify right side
    272,173,765.20x = 36,915,312,845,519,008
  5. Step 5: Solve for x
    x = 36,915,312,845,519,008/272,173,765.20
  6. Step 6: Final answer
    x = 135,631,414.80

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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.