Home / 406,988,519.72-610,486,557.57-115,855,631.91

Finding the Fourth Proportional to 406,988,519.72, 610,486,557.57 and 115,855,631.91

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Solution

The fourth proportional to 406,988,519.72, 610,486,557.57 and 115,855,631.91 is: 173,784,523.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,988,519.72 : 610,486,557.57 = 115,855,631.91 : x
  2. Step 2: Convert to fraction form
    406,988,519.72/610,486,557.57 = 115,855,631.91/x
  3. Step 3: Cross multiply
    406,988,519.72x = 610,486,557.57 × 115,855,631.91
  4. Step 4: Simplify right side
    406,988,519.72x = 70,728,305,899,832,944
  5. Step 5: Solve for x
    x = 70,728,305,899,832,944/406,988,519.72
  6. Step 6: Final answer
    x = 173,784,523.33

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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.