Home / 274,346,945.87-378,599,160.20-148,899,143.70

Finding the Fourth Proportional to 274,346,945.87, 378,599,160.20 and 148,899,143.70

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Solution

The fourth proportional to 274,346,945.87, 378,599,160.20 and 148,899,143.70 is: 205,481,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,346,945.87 : 378,599,160.20 = 148,899,143.70 : x
  2. Step 2: Convert to fraction form
    274,346,945.87/378,599,160.20 = 148,899,143.70/x
  3. Step 3: Cross multiply
    274,346,945.87x = 378,599,160.20 × 148,899,143.70
  4. Step 4: Simplify right side
    274,346,945.87x = 56,373,090,758,574,616
  5. Step 5: Solve for x
    x = 56,373,090,758,574,616/274,346,945.87
  6. Step 6: Final answer
    x = 205,481,021.78

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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.