Home / 768,067,058.84-1,151,970,643.07-215,242,253.90

Finding the Fourth Proportional to 768,067,058.84, 1,151,970,643.07 and 215,242,253.90

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Solution

The fourth proportional to 768,067,058.84, 1,151,970,643.07 and 215,242,253.90 is: 322,826,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,067,058.84 : 1,151,970,643.07 = 215,242,253.90 : x
  2. Step 2: Convert to fraction form
    768,067,058.84/1,151,970,643.07 = 215,242,253.90/x
  3. Step 3: Cross multiply
    768,067,058.84x = 1,151,970,643.07 × 215,242,253.90
  4. Step 4: Simplify right side
    768,067,058.84x = 247,952,757,637,601,216
  5. Step 5: Solve for x
    x = 247,952,757,637,601,216/768,067,058.84
  6. Step 6: Final answer
    x = 322,826,965.15

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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.