Home / 419,904,965.40-629,857,448.10-204,914,117.40

Finding the Fourth Proportional to 419,904,965.40, 629,857,448.10 and 204,914,117.40

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Solution

The fourth proportional to 419,904,965.40, 629,857,448.10 and 204,914,117.40 is: 307,371,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,965.40 : 629,857,448.10 = 204,914,117.40 : x
  2. Step 2: Convert to fraction form
    419,904,965.40/629,857,448.10 = 204,914,117.40/x
  3. Step 3: Cross multiply
    419,904,965.40x = 629,857,448.10 × 204,914,117.40
  4. Step 4: Simplify right side
    419,904,965.40x = 129,066,683,065,227,808
  5. Step 5: Solve for x
    x = 129,066,683,065,227,808/419,904,965.40
  6. Step 6: Final answer
    x = 307,371,176.10

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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.