Home / 419,904,007.65-629,856,011.48-238,505,479.65

Finding the Fourth Proportional to 419,904,007.65, 629,856,011.48 and 238,505,479.65

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Solution

The fourth proportional to 419,904,007.65, 629,856,011.48 and 238,505,479.65 is: 357,758,219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,007.65 : 629,856,011.48 = 238,505,479.65 : x
  2. Step 2: Convert to fraction form
    419,904,007.65/629,856,011.48 = 238,505,479.65/x
  3. Step 3: Cross multiply
    419,904,007.65x = 629,856,011.48 × 238,505,479.65
  4. Step 4: Simplify right side
    419,904,007.65x = 150,224,110,127,280,800
  5. Step 5: Solve for x
    x = 150,224,110,127,280,800/419,904,007.65
  6. Step 6: Final answer
    x = 357,758,219.48

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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.