Home / 11,278,063.88-16,920,739.10-5,216,771.69

Finding the Fourth Proportional to 11,278,063.88, 16,920,739.10 and 5,216,771.69

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Solution

The fourth proportional to 11,278,063.88, 16,920,739.10 and 5,216,771.69 is: 7,826,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278,063.88 : 16,920,739.10 = 5,216,771.69 : x
  2. Step 2: Convert to fraction form
    11,278,063.88/16,920,739.10 = 5,216,771.69/x
  3. Step 3: Cross multiply
    11,278,063.88x = 16,920,739.10 × 5,216,771.69
  4. Step 4: Simplify right side
    11,278,063.88x = 88,271,632,710,756.09
  5. Step 5: Solve for x
    x = 88,271,632,710,756.09/11,278,063.88
  6. Step 6: Final answer
    x = 7,826,842.77

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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.