Home / 290,376,180.29-400,719,186.45-158,217,176.81

Finding the Fourth Proportional to 290,376,180.29, 400,719,186.45 and 158,217,176.81

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Solution

The fourth proportional to 290,376,180.29, 400,719,186.45 and 158,217,176.81 is: 218,339,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376,180.29 : 400,719,186.45 = 158,217,176.81 : x
  2. Step 2: Convert to fraction form
    290,376,180.29/400,719,186.45 = 158,217,176.81/x
  3. Step 3: Cross multiply
    290,376,180.29x = 400,719,186.45 × 158,217,176.81
  4. Step 4: Simplify right side
    290,376,180.29x = 63,400,658,371,715,408
  5. Step 5: Solve for x
    x = 63,400,658,371,715,408/290,376,180.29
  6. Step 6: Final answer
    x = 218,339,735.41

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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.