Home / 272,387,389.34-408,578,391.42-124,793,083.72

Finding the Fourth Proportional to 272,387,389.34, 408,578,391.42 and 124,793,083.72

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Solution

The fourth proportional to 272,387,389.34, 408,578,391.42 and 124,793,083.72 is: 187,188,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,387,389.34 : 408,578,391.42 = 124,793,083.72 : x
  2. Step 2: Convert to fraction form
    272,387,389.34/408,578,391.42 = 124,793,083.72/x
  3. Step 3: Cross multiply
    272,387,389.34x = 408,578,391.42 × 124,793,083.72
  4. Step 4: Simplify right side
    272,387,389.34x = 50,987,757,404,616,104
  5. Step 5: Solve for x
    x = 50,987,757,404,616,104/272,387,389.34
  6. Step 6: Final answer
    x = 187,188,391.98

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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.