Home / 629,656,943.50-868,929,600.89-347,399,369.15

Finding the Fourth Proportional to 629,656,943.50, 868,929,600.89 and 347,399,369.15

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Solution

The fourth proportional to 629,656,943.50, 868,929,600.89 and 347,399,369.15 is: 479,412,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,656,943.50 : 868,929,600.89 = 347,399,369.15 : x
  2. Step 2: Convert to fraction form
    629,656,943.50/868,929,600.89 = 347,399,369.15/x
  3. Step 3: Cross multiply
    629,656,943.50x = 868,929,600.89 × 347,399,369.15
  4. Step 4: Simplify right side
    629,656,943.50x = 301,865,595,183,210,240
  5. Step 5: Solve for x
    x = 301,865,595,183,210,240/629,656,943.50
  6. Step 6: Final answer
    x = 479,412,795.02

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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.