Home / 443,232,954.70-664,849,432.05-419,424,397.90

Finding the Fourth Proportional to 443,232,954.70, 664,849,432.05 and 419,424,397.90

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Solution

The fourth proportional to 443,232,954.70, 664,849,432.05 and 419,424,397.90 is: 629,136,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,954.70 : 664,849,432.05 = 419,424,397.90 : x
  2. Step 2: Convert to fraction form
    443,232,954.70/664,849,432.05 = 419,424,397.90/x
  3. Step 3: Cross multiply
    443,232,954.70x = 664,849,432.05 × 419,424,397.90
  4. Step 4: Simplify right side
    443,232,954.70x = 278,854,072,731,728,192
  5. Step 5: Solve for x
    x = 278,854,072,731,728,192/443,232,954.70
  6. Step 6: Final answer
    x = 629,136,596.85

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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.