Home / 378,876,900.55-568,335,723.41-120,112,298.93

Finding the Fourth Proportional to 378,876,900.55, 568,335,723.41 and 120,112,298.93

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Solution

The fourth proportional to 378,876,900.55, 568,335,723.41 and 120,112,298.93 is: 180,174,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,876,900.55 : 568,335,723.41 = 120,112,298.93 : x
  2. Step 2: Convert to fraction form
    378,876,900.55/568,335,723.41 = 120,112,298.93/x
  3. Step 3: Cross multiply
    378,876,900.55x = 568,335,723.41 × 120,112,298.93
  4. Step 4: Simplify right side
    378,876,900.55x = 68,264,110,302,219,160
  5. Step 5: Solve for x
    x = 68,264,110,302,219,160/378,876,900.55
  6. Step 6: Final answer
    x = 180,174,906.95

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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.