Home / 1,109,613,872.16-1,663,131,701.88-419,081,744.16

Finding the Fourth Proportional to 1,109,613,872.16, 1,663,131,701.88 and 419,081,744.16

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Solution

The fourth proportional to 1,109,613,872.16, 1,663,131,701.88 and 419,081,744.16 is: 628,135,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,613,872.16 : 1,663,131,701.88 = 419,081,744.16 : x
  2. Step 2: Convert to fraction form
    1,109,613,872.16/1,663,131,701.88 = 419,081,744.16/x
  3. Step 3: Cross multiply
    1,109,613,872.16x = 1,663,131,701.88 × 419,081,744.16
  4. Step 4: Simplify right side
    1,109,613,872.16x = 696,988,134,391,659,648
  5. Step 5: Solve for x
    x = 696,988,134,391,659,648/1,109,613,872.16
  6. Step 6: Final answer
    x = 628,135,743.32

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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.