Home / 766,157,987,193.72-1,149,238,086,860.90-312,876,891,269.28

Finding the Fourth Proportional to 766,157,987,193.72, 1,149,238,086,860.90 and 312,876,891,269.28

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Solution

The fourth proportional to 766,157,987,193.72, 1,149,238,086,860.90 and 312,876,891,269.28 is: 469,315,788,591.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,157,987,193.72 : 1,149,238,086,860.90 = 312,876,891,269.28 : x
  2. Step 2: Convert to fraction form
    766,157,987,193.72/1,149,238,086,860.90 = 312,876,891,269.28/x
  3. Step 3: Cross multiply
    766,157,987,193.72x = 1,149,238,086,860.90 × 312,876,891,269.28
  4. Step 4: Simplify right side
    766,157,987,193.72x = 359,570,039,945,293,155,270,656
  5. Step 5: Solve for x
    x = 359,570,039,945,293,155,270,656/766,157,987,193.72
  6. Step 6: Final answer
    x = 469,315,788,591.23

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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.