Home / 320,849,249.45-442,774,564.37-177,797,402.18

Finding the Fourth Proportional to 320,849,249.45, 442,774,564.37 and 177,797,402.18

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Solution

The fourth proportional to 320,849,249.45, 442,774,564.37 and 177,797,402.18 is: 245,361,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,849,249.45 : 442,774,564.37 = 177,797,402.18 : x
  2. Step 2: Convert to fraction form
    320,849,249.45/442,774,564.37 = 177,797,402.18/x
  3. Step 3: Cross multiply
    320,849,249.45x = 442,774,564.37 × 177,797,402.18
  4. Step 4: Simplify right side
    320,849,249.45x = 78,724,167,297,895,344
  5. Step 5: Solve for x
    x = 78,724,167,297,895,344/320,849,249.45
  6. Step 6: Final answer
    x = 245,361,855.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.