Home / 290,962,879.20-436,526,200.08-127,215,015.84

Finding the Fourth Proportional to 290,962,879.20, 436,526,200.08 and 127,215,015.84

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Solution

The fourth proportional to 290,962,879.20, 436,526,200.08 and 127,215,015.84 is: 190,858,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,962,879.20 : 436,526,200.08 = 127,215,015.84 : x
  2. Step 2: Convert to fraction form
    290,962,879.20/436,526,200.08 = 127,215,015.84/x
  3. Step 3: Cross multiply
    290,962,879.20x = 436,526,200.08 × 127,215,015.84
  4. Step 4: Simplify right side
    290,962,879.20x = 55,532,687,457,752,208
  5. Step 5: Solve for x
    x = 55,532,687,457,752,208/290,962,879.20
  6. Step 6: Final answer
    x = 190,858,323.96

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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.