Home / 13,806,278.82-20,709,419.85-4,221,657.63

Finding the Fourth Proportional to 13,806,278.82, 20,709,419.85 and 4,221,657.63

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Solution

The fourth proportional to 13,806,278.82, 20,709,419.85 and 4,221,657.63 is: 6,332,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806,278.82 : 20,709,419.85 = 4,221,657.63 : x
  2. Step 2: Convert to fraction form
    13,806,278.82/20,709,419.85 = 4,221,657.63/x
  3. Step 3: Cross multiply
    13,806,278.82x = 20,709,419.85 × 4,221,657.63
  4. Step 4: Simplify right side
    13,806,278.82x = 87,428,080,322,625.95
  5. Step 5: Solve for x
    x = 87,428,080,322,625.95/13,806,278.82
  6. Step 6: Final answer
    x = 6,332,486.94

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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.