Home / 419,904,004.80-629,856,007.20-379,727,065.20

Finding the Fourth Proportional to 419,904,004.80, 629,856,007.20 and 379,727,065.20

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Solution

The fourth proportional to 419,904,004.80, 629,856,007.20 and 379,727,065.20 is: 569,590,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,004.80 : 629,856,007.20 = 379,727,065.20 : x
  2. Step 2: Convert to fraction form
    419,904,004.80/629,856,007.20 = 379,727,065.20/x
  3. Step 3: Cross multiply
    419,904,004.80x = 629,856,007.20 × 379,727,065.20
  4. Step 4: Simplify right side
    419,904,004.80x = 239,173,373,112,646,080
  5. Step 5: Solve for x
    x = 239,173,373,112,646,080/419,904,004.80
  6. Step 6: Final answer
    x = 569,590,597.80

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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.