Home / 274,219,945.91-378,423,529.57-156,747,821.03

Finding the Fourth Proportional to 274,219,945.91, 378,423,529.57 and 156,747,821.03

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Solution

The fourth proportional to 274,219,945.91, 378,423,529.57 and 156,747,821.03 is: 216,311,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,219,945.91 : 378,423,529.57 = 156,747,821.03 : x
  2. Step 2: Convert to fraction form
    274,219,945.91/378,423,529.57 = 156,747,821.03/x
  3. Step 3: Cross multiply
    274,219,945.91x = 378,423,529.57 × 156,747,821.03
  4. Step 4: Simplify right side
    274,219,945.91x = 59,317,063,687,721,272
  5. Step 5: Solve for x
    x = 59,317,063,687,721,272/274,219,945.91
  6. Step 6: Final answer
    x = 216,311,995.43

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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.