Home / 213,680,021.80-320,520,032.70-133,058,453.80

Finding the Fourth Proportional to 213,680,021.80, 320,520,032.70 and 133,058,453.80

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Solution

The fourth proportional to 213,680,021.80, 320,520,032.70 and 133,058,453.80 is: 199,587,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,680,021.80 : 320,520,032.70 = 133,058,453.80 : x
  2. Step 2: Convert to fraction form
    213,680,021.80/320,520,032.70 = 133,058,453.80/x
  3. Step 3: Cross multiply
    213,680,021.80x = 320,520,032.70 × 133,058,453.80
  4. Step 4: Simplify right side
    213,680,021.80x = 42,647,899,962,987,440
  5. Step 5: Solve for x
    x = 42,647,899,962,987,440/213,680,021.80
  6. Step 6: Final answer
    x = 199,587,680.70

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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.