Home / 378,844,290.16-568,282,379.28-120,069,721.60

Finding the Fourth Proportional to 378,844,290.16, 568,282,379.28 and 120,069,721.60

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Solution

The fourth proportional to 378,844,290.16, 568,282,379.28 and 120,069,721.60 is: 180,109,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,844,290.16 : 568,282,379.28 = 120,069,721.60 : x
  2. Step 2: Convert to fraction form
    378,844,290.16/568,282,379.28 = 120,069,721.60/x
  3. Step 3: Cross multiply
    378,844,290.16x = 568,282,379.28 × 120,069,721.60
  4. Step 4: Simplify right side
    378,844,290.16x = 68,233,507,070,335,200
  5. Step 5: Solve for x
    x = 68,233,507,070,335,200/378,844,290.16
  6. Step 6: Final answer
    x = 180,109,635.65

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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.