Home / 7,738,678.86-11,608,278.45-3,478,861.26

Finding the Fourth Proportional to 7,738,678.86, 11,608,278.45 and 3,478,861.26

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Solution

The fourth proportional to 7,738,678.86, 11,608,278.45 and 3,478,861.26 is: 5,218,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738,678.86 : 11,608,278.45 = 3,478,861.26 : x
  2. Step 2: Convert to fraction form
    7,738,678.86/11,608,278.45 = 3,478,861.26/x
  3. Step 3: Cross multiply
    7,738,678.86x = 11,608,278.45 × 3,478,861.26
  4. Step 4: Simplify right side
    7,738,678.86x = 40,383,590,194,997.84
  5. Step 5: Solve for x
    x = 40,383,590,194,997.84/7,738,678.86
  6. Step 6: Final answer
    x = 5,218,408.84

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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.