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Finding the Fourth Proportional to 880,786,530.80, 1,321,137,805.80 and 298,463,663.60

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Solution

The fourth proportional to 880,786,530.80, 1,321,137,805.80 and 298,463,663.60 is: 447,681,266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,786,530.80 : 1,321,137,805.80 = 298,463,663.60 : x
  2. Step 2: Convert to fraction form
    880,786,530.80/1,321,137,805.80 = 298,463,663.60/x
  3. Step 3: Cross multiply
    880,786,530.80x = 1,321,137,805.80 × 298,463,663.60
  4. Step 4: Simplify right side
    880,786,530.80x = 394,311,629,639,533,376
  5. Step 5: Solve for x
    x = 394,311,629,639,533,376/880,786,530.80
  6. Step 6: Final answer
    x = 447,681,266.52

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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.