Home / 272,433,362.60-408,768,008.70-128,752,236.20

Finding the Fourth Proportional to 272,433,362.60, 408,768,008.70 and 128,752,236.20

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Solution

The fourth proportional to 272,433,362.60, 408,768,008.70 and 128,752,236.20 is: 193,184,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,433,362.60 : 408,768,008.70 = 128,752,236.20 : x
  2. Step 2: Convert to fraction form
    272,433,362.60/408,768,008.70 = 128,752,236.20/x
  3. Step 3: Cross multiply
    272,433,362.60x = 408,768,008.70 × 128,752,236.20
  4. Step 4: Simplify right side
    272,433,362.60x = 52,629,795,207,146,056
  5. Step 5: Solve for x
    x = 52,629,795,207,146,056/272,433,362.60
  6. Step 6: Final answer
    x = 193,184,104.56

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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.