Home / 405,279,536.90-559,560,306.24-256,732,480.22

Finding the Fourth Proportional to 405,279,536.90, 559,560,306.24 and 256,732,480.22

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Solution

The fourth proportional to 405,279,536.90, 559,560,306.24 and 256,732,480.22 is: 354,464,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,279,536.90 : 559,560,306.24 = 256,732,480.22 : x
  2. Step 2: Convert to fraction form
    405,279,536.90/559,560,306.24 = 256,732,480.22/x
  3. Step 3: Cross multiply
    405,279,536.90x = 559,560,306.24 × 256,732,480.22
  4. Step 4: Simplify right side
    405,279,536.90x = 143,657,305,253,657,952
  5. Step 5: Solve for x
    x = 143,657,305,253,657,952/405,279,536.90
  6. Step 6: Final answer
    x = 354,464,738.96

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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.