Home / 15,555,215.86-21,476,309.34-13,920,813.37

Finding the Fourth Proportional to 15,555,215.86, 21,476,309.34 and 13,920,813.37

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Solution

The fourth proportional to 15,555,215.86, 21,476,309.34 and 13,920,813.37 is: 19,219,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555,215.86 : 21,476,309.34 = 13,920,813.37 : x
  2. Step 2: Convert to fraction form
    15,555,215.86/21,476,309.34 = 13,920,813.37/x
  3. Step 3: Cross multiply
    15,555,215.86x = 21,476,309.34 × 13,920,813.37
  4. Step 4: Simplify right side
    15,555,215.86x = 298,967,694,198,527.88
  5. Step 5: Solve for x
    x = 298,967,694,198,527.88/15,555,215.86
  6. Step 6: Final answer
    x = 19,219,771.48

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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.