Home / 419,904,428.70-629,856,643.05-113,227,542.30

Finding the Fourth Proportional to 419,904,428.70, 629,856,643.05 and 113,227,542.30

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Solution

The fourth proportional to 419,904,428.70, 629,856,643.05 and 113,227,542.30 is: 169,841,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,428.70 : 629,856,643.05 = 113,227,542.30 : x
  2. Step 2: Convert to fraction form
    419,904,428.70/629,856,643.05 = 113,227,542.30/x
  3. Step 3: Cross multiply
    419,904,428.70x = 629,856,643.05 × 113,227,542.30
  4. Step 4: Simplify right side
    419,904,428.70x = 71,317,119,693,879,872
  5. Step 5: Solve for x
    x = 71,317,119,693,879,872/419,904,428.70
  6. Step 6: Final answer
    x = 169,841,313.45

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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.