Home / 820,979,207.90-1,132,950,947.99-444,635,814.66

Finding the Fourth Proportional to 820,979,207.90, 1,132,950,947.99 and 444,635,814.66

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Solution

The fourth proportional to 820,979,207.90, 1,132,950,947.99 and 444,635,814.66 is: 613,597,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,979,207.90 : 1,132,950,947.99 = 444,635,814.66 : x
  2. Step 2: Convert to fraction form
    820,979,207.90/1,132,950,947.99 = 444,635,814.66/x
  3. Step 3: Cross multiply
    820,979,207.90x = 1,132,950,947.99 × 444,635,814.66
  4. Step 4: Simplify right side
    820,979,207.90x = 503,750,567,727,129,728
  5. Step 5: Solve for x
    x = 503,750,567,727,129,728/820,979,207.90
  6. Step 6: Final answer
    x = 613,597,229.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.