Home / 290,962,860.48-436,526,172-127,214,997.12

Finding the Fourth Proportional to 290,962,860.48, 436,526,172 and 127,214,997.12

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Solution

The fourth proportional to 290,962,860.48, 436,526,172 and 127,214,997.12 is: 190,858,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,962,860.48 : 436,526,172 = 127,214,997.12 : x
  2. Step 2: Convert to fraction form
    290,962,860.48/436,526,172 = 127,214,997.12/x
  3. Step 3: Cross multiply
    290,962,860.48x = 436,526,172 × 127,214,997.12
  4. Step 4: Simplify right side
    290,962,860.48x = 55,532,675,713,784,624
  5. Step 5: Solve for x
    x = 55,532,675,713,784,624/290,962,860.48
  6. Step 6: Final answer
    x = 190,858,295.87

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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.