Home / 419,484,736.85-629,229,095.51-128,351,395.26

Finding the Fourth Proportional to 419,484,736.85, 629,229,095.51 and 128,351,395.26

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Solution

The fourth proportional to 419,484,736.85, 629,229,095.51 and 128,351,395.26 is: 192,527,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,484,736.85 : 629,229,095.51 = 128,351,395.26 : x
  2. Step 2: Convert to fraction form
    419,484,736.85/629,229,095.51 = 128,351,395.26/x
  3. Step 3: Cross multiply
    419,484,736.85x = 629,229,095.51 × 128,351,395.26
  4. Step 4: Simplify right side
    419,484,736.85x = 80,762,432,346,254,544
  5. Step 5: Solve for x
    x = 80,762,432,346,254,544/419,484,736.85
  6. Step 6: Final answer
    x = 192,527,701.85

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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.