Home / 820,641,528.48-1,231,192,423.44-329,699,543.52

Finding the Fourth Proportional to 820,641,528.48, 1,231,192,423.44 and 329,699,543.52

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Solution

The fourth proportional to 820,641,528.48, 1,231,192,423.44 and 329,699,543.52 is: 494,641,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,641,528.48 : 1,231,192,423.44 = 329,699,543.52 : x
  2. Step 2: Convert to fraction form
    820,641,528.48/1,231,192,423.44 = 329,699,543.52/x
  3. Step 3: Cross multiply
    820,641,528.48x = 1,231,192,423.44 × 329,699,543.52
  4. Step 4: Simplify right side
    820,641,528.48x = 405,923,579,993,450,560
  5. Step 5: Solve for x
    x = 405,923,579,993,450,560/820,641,528.48
  6. Step 6: Final answer
    x = 494,641,772.21

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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.