Home / 419,783,571.32-629,083,465.48-198,218,510.20

Finding the Fourth Proportional to 419,783,571.32, 629,083,465.48 and 198,218,510.20

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Solution

The fourth proportional to 419,783,571.32, 629,083,465.48 and 198,218,510.20 is: 297,048,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,783,571.32 : 629,083,465.48 = 198,218,510.20 : x
  2. Step 2: Convert to fraction form
    419,783,571.32/629,083,465.48 = 198,218,510.20/x
  3. Step 3: Cross multiply
    419,783,571.32x = 629,083,465.48 × 198,218,510.20
  4. Step 4: Simplify right side
    419,783,571.32x = 124,695,987,314,762,224
  5. Step 5: Solve for x
    x = 124,695,987,314,762,224/419,783,571.32
  6. Step 6: Final answer
    x = 297,048,278.77

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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.