Home / 629,674,049.70-869,228,859.89-406,764,443.45

Finding the Fourth Proportional to 629,674,049.70, 869,228,859.89 and 406,764,443.45

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Solution

The fourth proportional to 629,674,049.70, 869,228,859.89 and 406,764,443.45 is: 561,514,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,674,049.70 : 869,228,859.89 = 406,764,443.45 : x
  2. Step 2: Convert to fraction form
    629,674,049.70/869,228,859.89 = 406,764,443.45/x
  3. Step 3: Cross multiply
    629,674,049.70x = 869,228,859.89 × 406,764,443.45
  4. Step 4: Simplify right side
    629,674,049.70x = 353,571,393,427,023,872
  5. Step 5: Solve for x
    x = 353,571,393,427,023,872/629,674,049.70
  6. Step 6: Final answer
    x = 561,514,951.42

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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.