Home / 1,121,643,350.56-1,680,961,092.97-872,948,891.60

Finding the Fourth Proportional to 1,121,643,350.56, 1,680,961,092.97 and 872,948,891.60

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Solution

The fourth proportional to 1,121,643,350.56, 1,680,961,092.97 and 872,948,891.60 is: 1,308,252,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,643,350.56 : 1,680,961,092.97 = 872,948,891.60 : x
  2. Step 2: Convert to fraction form
    1,121,643,350.56/1,680,961,092.97 = 872,948,891.60/x
  3. Step 3: Cross multiply
    1,121,643,350.56x = 1,680,961,092.97 × 872,948,891.60
  4. Step 4: Simplify right side
    1,121,643,350.56x = 1,467,393,122,930,886,144
  5. Step 5: Solve for x
    x = 1,467,393,122,930,886,144/1,121,643,350.56
  6. Step 6: Final answer
    x = 1,308,252,861.48

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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.