Home / 419,904,019.80-629,856,029.70-402,897,907.80

Finding the Fourth Proportional to 419,904,019.80, 629,856,029.70 and 402,897,907.80

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Solution

The fourth proportional to 419,904,019.80, 629,856,029.70 and 402,897,907.80 is: 604,346,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,019.80 : 629,856,029.70 = 402,897,907.80 : x
  2. Step 2: Convert to fraction form
    419,904,019.80/629,856,029.70 = 402,897,907.80/x
  3. Step 3: Cross multiply
    419,904,019.80x = 629,856,029.70 × 402,897,907.80
  4. Step 4: Simplify right side
    419,904,019.80x = 253,767,676,581,344,704
  5. Step 5: Solve for x
    x = 253,767,676,581,344,704/419,904,019.80
  6. Step 6: Final answer
    x = 604,346,861.70

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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.