Home / 629,674,056.45-869,228,869.21-406,764,450.20

Finding the Fourth Proportional to 629,674,056.45, 869,228,869.21 and 406,764,450.20

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Solution

The fourth proportional to 629,674,056.45, 869,228,869.21 and 406,764,450.20 is: 561,514,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,674,056.45 : 869,228,869.21 = 406,764,450.20 : x
  2. Step 2: Convert to fraction form
    629,674,056.45/869,228,869.21 = 406,764,450.20/x
  3. Step 3: Cross multiply
    629,674,056.45x = 869,228,869.21 × 406,764,450.20
  4. Step 4: Simplify right side
    629,674,056.45x = 353,571,403,083,329,472
  5. Step 5: Solve for x
    x = 353,571,403,083,329,472/629,674,056.45
  6. Step 6: Final answer
    x = 561,514,960.73

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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.