Home / 272,247,688.20-408,371,532.30-99,741,939.60

Finding the Fourth Proportional to 272,247,688.20, 408,371,532.30 and 99,741,939.60

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Solution

The fourth proportional to 272,247,688.20, 408,371,532.30 and 99,741,939.60 is: 149,612,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,247,688.20 : 408,371,532.30 = 99,741,939.60 : x
  2. Step 2: Convert to fraction form
    272,247,688.20/408,371,532.30 = 99,741,939.60/x
  3. Step 3: Cross multiply
    272,247,688.20x = 408,371,532.30 × 99,741,939.60
  4. Step 4: Simplify right side
    272,247,688.20x = 40,731,768,709,026,048
  5. Step 5: Solve for x
    x = 40,731,768,709,026,048/272,247,688.20
  6. Step 6: Final answer
    x = 149,612,909.40

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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.