Home / 5,679,874.86-7,838,216.55-3,642,679.50

Finding the Fourth Proportional to 5,679,874.86, 7,838,216.55 and 3,642,679.50

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Solution

The fourth proportional to 5,679,874.86, 7,838,216.55 and 3,642,679.50 is: 5,026,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679,874.86 : 7,838,216.55 = 3,642,679.50 : x
  2. Step 2: Convert to fraction form
    5,679,874.86/7,838,216.55 = 3,642,679.50/x
  3. Step 3: Cross multiply
    5,679,874.86x = 7,838,216.55 × 3,642,679.50
  4. Step 4: Simplify right side
    5,679,874.86x = 28,552,110,743,245.72
  5. Step 5: Solve for x
    x = 28,552,110,743,245.72/5,679,874.86
  6. Step 6: Final answer
    x = 5,026,890.81

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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.