Home / 419,904,511.40-629,856,767.10-264,936,315.80

Finding the Fourth Proportional to 419,904,511.40, 629,856,767.10 and 264,936,315.80

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Solution

The fourth proportional to 419,904,511.40, 629,856,767.10 and 264,936,315.80 is: 397,404,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,511.40 : 629,856,767.10 = 264,936,315.80 : x
  2. Step 2: Convert to fraction form
    419,904,511.40/629,856,767.10 = 264,936,315.80/x
  3. Step 3: Cross multiply
    419,904,511.40x = 629,856,767.10 × 264,936,315.80
  4. Step 4: Simplify right side
    419,904,511.40x = 166,871,931,357,172,672
  5. Step 5: Solve for x
    x = 166,871,931,357,172,672/419,904,511.40
  6. Step 6: Final answer
    x = 397,404,473.70

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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.