Home / 1,323,689,474.38-1,985,796,044.25-378,296,042.57

Finding the Fourth Proportional to 1,323,689,474.38, 1,985,796,044.25 and 378,296,042.57

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Solution

The fourth proportional to 1,323,689,474.38, 1,985,796,044.25 and 378,296,042.57 is: 567,518,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,689,474.38 : 1,985,796,044.25 = 378,296,042.57 : x
  2. Step 2: Convert to fraction form
    1,323,689,474.38/1,985,796,044.25 = 378,296,042.57/x
  3. Step 3: Cross multiply
    1,323,689,474.38x = 1,985,796,044.25 × 378,296,042.57
  4. Step 4: Simplify right side
    1,323,689,474.38x = 751,218,784,890,828,928
  5. Step 5: Solve for x
    x = 751,218,784,890,828,928/1,323,689,474.38
  6. Step 6: Final answer
    x = 567,518,892.78

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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.