Home / 201,860,185.75-278,566,842.45-109,040,678.71

Finding the Fourth Proportional to 201,860,185.75, 278,566,842.45 and 109,040,678.71

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Solution

The fourth proportional to 201,860,185.75, 278,566,842.45 and 109,040,678.71 is: 150,476,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,860,185.75 : 278,566,842.45 = 109,040,678.71 : x
  2. Step 2: Convert to fraction form
    201,860,185.75/278,566,842.45 = 109,040,678.71/x
  3. Step 3: Cross multiply
    201,860,185.75x = 278,566,842.45 × 109,040,678.71
  4. Step 4: Simplify right side
    201,860,185.75x = 30,375,117,566,849,636
  5. Step 5: Solve for x
    x = 30,375,117,566,849,636/201,860,185.75
  6. Step 6: Final answer
    x = 150,476,021.08

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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.