Home / 419,904,868.40-629,857,302.60-204,914,020.40

Finding the Fourth Proportional to 419,904,868.40, 629,857,302.60 and 204,914,020.40

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Solution

The fourth proportional to 419,904,868.40, 629,857,302.60 and 204,914,020.40 is: 307,371,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,868.40 : 629,857,302.60 = 204,914,020.40 : x
  2. Step 2: Convert to fraction form
    419,904,868.40/629,857,302.60 = 204,914,020.40/x
  3. Step 3: Cross multiply
    419,904,868.40x = 629,857,302.60 × 204,914,020.40
  4. Step 4: Simplify right side
    419,904,868.40x = 129,066,592,154,065,376
  5. Step 5: Solve for x
    x = 129,066,592,154,065,376/419,904,868.40
  6. Step 6: Final answer
    x = 307,371,030.60

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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.