Home / 8,378,109.88-11,561,944.50-4,657,290.28

Finding the Fourth Proportional to 8,378,109.88, 11,561,944.50 and 4,657,290.28

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Solution

The fourth proportional to 8,378,109.88, 11,561,944.50 and 4,657,290.28 is: 6,427,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,109.88 : 11,561,944.50 = 4,657,290.28 : x
  2. Step 2: Convert to fraction form
    8,378,109.88/11,561,944.50 = 4,657,290.28/x
  3. Step 3: Cross multiply
    8,378,109.88x = 11,561,944.50 × 4,657,290.28
  4. Step 4: Simplify right side
    8,378,109.88x = 53,847,331,737,749.46
  5. Step 5: Solve for x
    x = 53,847,331,737,749.46/8,378,109.88
  6. Step 6: Final answer
    x = 6,427,145.56

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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.