Home / 484,421,168.70-726,631,753.05-427,025,540.70

Finding the Fourth Proportional to 484,421,168.70, 726,631,753.05 and 427,025,540.70

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Solution

The fourth proportional to 484,421,168.70, 726,631,753.05 and 427,025,540.70 is: 640,538,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,421,168.70 : 726,631,753.05 = 427,025,540.70 : x
  2. Step 2: Convert to fraction form
    484,421,168.70/726,631,753.05 = 427,025,540.70/x
  3. Step 3: Cross multiply
    484,421,168.70x = 726,631,753.05 × 427,025,540.70
  4. Step 4: Simplify right side
    484,421,168.70x = 310,290,317,235,965,120
  5. Step 5: Solve for x
    x = 310,290,317,235,965,120/484,421,168.70
  6. Step 6: Final answer
    x = 640,538,311.05

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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.