Home / 419,906,117.40-629,859,176.10-204,915,269.40

Finding the Fourth Proportional to 419,906,117.40, 629,859,176.10 and 204,915,269.40

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Solution

The fourth proportional to 419,906,117.40, 629,859,176.10 and 204,915,269.40 is: 307,372,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,117.40 : 629,859,176.10 = 204,915,269.40 : x
  2. Step 2: Convert to fraction form
    419,906,117.40/629,859,176.10 = 204,915,269.40/x
  3. Step 3: Cross multiply
    419,906,117.40x = 629,859,176.10 × 204,915,269.40
  4. Step 4: Simplify right side
    419,906,117.40x = 129,067,762,754,593,552
  5. Step 5: Solve for x
    x = 129,067,762,754,593,552/419,906,117.40
  6. Step 6: Final answer
    x = 307,372,904.10

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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.