Home / 398,641,174.38-550,126,341.36-222,436,596.42

Finding the Fourth Proportional to 398,641,174.38, 550,126,341.36 and 222,436,596.42

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Solution

The fourth proportional to 398,641,174.38, 550,126,341.36 and 222,436,596.42 is: 306,963,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,641,174.38 : 550,126,341.36 = 222,436,596.42 : x
  2. Step 2: Convert to fraction form
    398,641,174.38/550,126,341.36 = 222,436,596.42/x
  3. Step 3: Cross multiply
    398,641,174.38x = 550,126,341.36 × 222,436,596.42
  4. Step 4: Simplify right side
    398,641,174.38x = 122,368,230,973,105,472
  5. Step 5: Solve for x
    x = 122,368,230,973,105,472/398,641,174.38
  6. Step 6: Final answer
    x = 306,963,351.60

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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.