Home / 629,472,328.03-868,672,649.46-347,208,438.79

Finding the Fourth Proportional to 629,472,328.03, 868,672,649.46 and 347,208,438.79

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Solution

The fourth proportional to 629,472,328.03, 868,672,649.46 and 347,208,438.79 is: 479,148,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,472,328.03 : 868,672,649.46 = 347,208,438.79 : x
  2. Step 2: Convert to fraction form
    629,472,328.03/868,672,649.46 = 347,208,438.79/x
  3. Step 3: Cross multiply
    629,472,328.03x = 868,672,649.46 × 347,208,438.79
  4. Step 4: Simplify right side
    629,472,328.03x = 301,610,474,438,579,584
  5. Step 5: Solve for x
    x = 301,610,474,438,579,584/629,472,328.03
  6. Step 6: Final answer
    x = 479,148,107.09

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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.