Home / 467,278,819.57-645,043,323.54-291,153,834.42

Finding the Fourth Proportional to 467,278,819.57, 645,043,323.54 and 291,153,834.42

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Solution

The fourth proportional to 467,278,819.57, 645,043,323.54 and 291,153,834.42 is: 401,916,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,278,819.57 : 645,043,323.54 = 291,153,834.42 : x
  2. Step 2: Convert to fraction form
    467,278,819.57/645,043,323.54 = 291,153,834.42/x
  3. Step 3: Cross multiply
    467,278,819.57x = 645,043,323.54 × 291,153,834.42
  4. Step 4: Simplify right side
    467,278,819.57x = 187,806,837,015,691,648
  5. Step 5: Solve for x
    x = 187,806,837,015,691,648/467,278,819.57
  6. Step 6: Final answer
    x = 401,916,006.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.