Home / 443,232,912.70-664,849,369.05-419,424,355.90

Finding the Fourth Proportional to 443,232,912.70, 664,849,369.05 and 419,424,355.90

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Solution

The fourth proportional to 443,232,912.70, 664,849,369.05 and 419,424,355.90 is: 629,136,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,912.70 : 664,849,369.05 = 419,424,355.90 : x
  2. Step 2: Convert to fraction form
    443,232,912.70/664,849,369.05 = 419,424,355.90/x
  3. Step 3: Cross multiply
    443,232,912.70x = 664,849,369.05 × 419,424,355.90
  4. Step 4: Simplify right side
    443,232,912.70x = 278,854,018,384,317,600
  5. Step 5: Solve for x
    x = 278,854,018,384,317,600/443,232,912.70
  6. Step 6: Final answer
    x = 629,136,533.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.