Home / 766,157,987,259.79-1,149,238,086,960.30-312,876,891,335.95

Finding the Fourth Proportional to 766,157,987,259.79, 1,149,238,086,960.30 and 312,876,891,335.95

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Solution

The fourth proportional to 766,157,987,259.79, 1,149,238,086,960.30 and 312,876,891,335.95 is: 469,315,788,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,157,987,259.79 : 1,149,238,086,960.30 = 312,876,891,335.95 : x
  2. Step 2: Convert to fraction form
    766,157,987,259.79/1,149,238,086,960.30 = 312,876,891,335.95/x
  3. Step 3: Cross multiply
    766,157,987,259.79x = 1,149,238,086,960.30 × 312,876,891,335.95
  4. Step 4: Simplify right side
    766,157,987,259.79x = 359,570,040,053,012,881,211,392
  5. Step 5: Solve for x
    x = 359,570,040,053,012,881,211,392/766,157,987,259.79
  6. Step 6: Final answer
    x = 469,315,788,691.36

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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.