Home / 419,904,672.40-629,857,008.60-204,913,824.40

Finding the Fourth Proportional to 419,904,672.40, 629,857,008.60 and 204,913,824.40

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Solution

The fourth proportional to 419,904,672.40, 629,857,008.60 and 204,913,824.40 is: 307,370,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,672.40 : 629,857,008.60 = 204,913,824.40 : x
  2. Step 2: Convert to fraction form
    419,904,672.40/629,857,008.60 = 204,913,824.40/x
  3. Step 3: Cross multiply
    419,904,672.40x = 629,857,008.60 × 204,913,824.40
  4. Step 4: Simplify right side
    419,904,672.40x = 129,066,408,457,369,696
  5. Step 5: Solve for x
    x = 129,066,408,457,369,696/419,904,672.40
  6. Step 6: Final answer
    x = 307,370,736.60

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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.