Home / 290,376,177.53-400,719,182.66-158,217,174.05

Finding the Fourth Proportional to 290,376,177.53, 400,719,182.66 and 158,217,174.05

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Solution

The fourth proportional to 290,376,177.53, 400,719,182.66 and 158,217,174.05 is: 218,339,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376,177.53 : 400,719,182.66 = 158,217,174.05 : x
  2. Step 2: Convert to fraction form
    290,376,177.53/400,719,182.66 = 158,217,174.05/x
  3. Step 3: Cross multiply
    290,376,177.53x = 400,719,182.66 × 158,217,174.05
  4. Step 4: Simplify right side
    290,376,177.53x = 63,400,656,668,090,968
  5. Step 5: Solve for x
    x = 63,400,656,668,090,968/290,376,177.53
  6. Step 6: Final answer
    x = 218,339,731.61

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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.