Home / 317,317,961.70-475,976,942.55-208,478,844.90

Finding the Fourth Proportional to 317,317,961.70, 475,976,942.55 and 208,478,844.90

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Solution

The fourth proportional to 317,317,961.70, 475,976,942.55 and 208,478,844.90 is: 312,718,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,317,961.70 : 475,976,942.55 = 208,478,844.90 : x
  2. Step 2: Convert to fraction form
    317,317,961.70/475,976,942.55 = 208,478,844.90/x
  3. Step 3: Cross multiply
    317,317,961.70x = 475,976,942.55 × 208,478,844.90
  4. Step 4: Simplify right side
    317,317,961.70x = 99,231,123,181,857,664
  5. Step 5: Solve for x
    x = 99,231,123,181,857,664/317,317,961.70
  6. Step 6: Final answer
    x = 312,718,267.35

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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.