Home / 419,904,525.60-629,856,788.40-113,227,639.20

Finding the Fourth Proportional to 419,904,525.60, 629,856,788.40 and 113,227,639.20

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Solution

The fourth proportional to 419,904,525.60, 629,856,788.40 and 113,227,639.20 is: 169,841,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,525.60 : 629,856,788.40 = 113,227,639.20 : x
  2. Step 2: Convert to fraction form
    419,904,525.60/629,856,788.40 = 113,227,639.20/x
  3. Step 3: Cross multiply
    419,904,525.60x = 629,856,788.40 × 113,227,639.20
  4. Step 4: Simplify right side
    419,904,525.60x = 71,317,197,184,625,944
  5. Step 5: Solve for x
    x = 71,317,197,184,625,944/419,904,525.60
  6. Step 6: Final answer
    x = 169,841,458.80

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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.