Home / 405,988,129.22-560,199,622.94-236,470,265.78

Finding the Fourth Proportional to 405,988,129.22, 560,199,622.94 and 236,470,265.78

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Solution

The fourth proportional to 405,988,129.22, 560,199,622.94 and 236,470,265.78 is: 326,291,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,988,129.22 : 560,199,622.94 = 236,470,265.78 : x
  2. Step 2: Convert to fraction form
    405,988,129.22/560,199,622.94 = 236,470,265.78/x
  3. Step 3: Cross multiply
    405,988,129.22x = 560,199,622.94 × 236,470,265.78
  4. Step 4: Simplify right side
    405,988,129.22x = 132,470,553,723,383,376
  5. Step 5: Solve for x
    x = 132,470,553,723,383,376/405,988,129.22
  6. Step 6: Final answer
    x = 326,291,692.27

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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.