Home / 1,387,761,586.92-2,081,419,013.70-404,957,379.24

Finding the Fourth Proportional to 1,387,761,586.92, 2,081,419,013.70 and 404,957,379.24

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Solution

The fourth proportional to 1,387,761,586.92, 2,081,419,013.70 and 404,957,379.24 is: 607,370,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,761,586.92 : 2,081,419,013.70 = 404,957,379.24 : x
  2. Step 2: Convert to fraction form
    1,387,761,586.92/2,081,419,013.70 = 404,957,379.24/x
  3. Step 3: Cross multiply
    1,387,761,586.92x = 2,081,419,013.70 × 404,957,379.24
  4. Step 4: Simplify right side
    1,387,761,586.92x = 842,885,988,888,257,664
  5. Step 5: Solve for x
    x = 842,885,988,888,257,664/1,387,761,586.92
  6. Step 6: Final answer
    x = 607,370,889.09

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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.