Home / 472,393,190.80-708,589,786.20-213,616,853.20

Finding the Fourth Proportional to 472,393,190.80, 708,589,786.20 and 213,616,853.20

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Solution

The fourth proportional to 472,393,190.80, 708,589,786.20 and 213,616,853.20 is: 320,425,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,190.80 : 708,589,786.20 = 213,616,853.20 : x
  2. Step 2: Convert to fraction form
    472,393,190.80/708,589,786.20 = 213,616,853.20/x
  3. Step 3: Cross multiply
    472,393,190.80x = 708,589,786.20 × 213,616,853.20
  4. Step 4: Simplify right side
    472,393,190.80x = 151,366,720,337,704,800
  5. Step 5: Solve for x
    x = 151,366,720,337,704,800/472,393,190.80
  6. Step 6: Final answer
    x = 320,425,279.80

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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.