Home / 272,245,687.20-408,368,530.80-99,739,938.60

Finding the Fourth Proportional to 272,245,687.20, 408,368,530.80 and 99,739,938.60

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Solution

The fourth proportional to 272,245,687.20, 408,368,530.80 and 99,739,938.60 is: 149,609,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,245,687.20 : 408,368,530.80 = 99,739,938.60 : x
  2. Step 2: Convert to fraction form
    272,245,687.20/408,368,530.80 = 99,739,938.60/x
  3. Step 3: Cross multiply
    272,245,687.20x = 408,368,530.80 × 99,739,938.60
  4. Step 4: Simplify right side
    272,245,687.20x = 40,730,652,188,164,208
  5. Step 5: Solve for x
    x = 40,730,652,188,164,208/272,245,687.20
  6. Step 6: Final answer
    x = 149,609,907.90

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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.