Home / 290,471,183.68-400,838,561.94-158,309,341.89

Finding the Fourth Proportional to 290,471,183.68, 400,838,561.94 and 158,309,341.89

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Solution

The fourth proportional to 290,471,183.68, 400,838,561.94 and 158,309,341.89 is: 218,460,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,471,183.68 : 400,838,561.94 = 158,309,341.89 : x
  2. Step 2: Convert to fraction form
    290,471,183.68/400,838,561.94 = 158,309,341.89/x
  3. Step 3: Cross multiply
    290,471,183.68x = 400,838,561.94 × 158,309,341.89
  4. Step 4: Simplify right side
    290,471,183.68x = 63,456,488,944,855,392
  5. Step 5: Solve for x
    x = 63,456,488,944,855,392/290,471,183.68
  6. Step 6: Final answer
    x = 218,460,530.72

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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.