Home / 12,919,858.22-19,378,770.37-5,633,146.01

Finding the Fourth Proportional to 12,919,858.22, 19,378,770.37 and 5,633,146.01

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Solution

The fourth proportional to 12,919,858.22, 19,378,770.37 and 5,633,146.01 is: 8,449,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,858.22 : 19,378,770.37 = 5,633,146.01 : x
  2. Step 2: Convert to fraction form
    12,919,858.22/19,378,770.37 = 5,633,146.01/x
  3. Step 3: Cross multiply
    12,919,858.22x = 19,378,770.37 × 5,633,146.01
  4. Step 4: Simplify right side
    12,919,858.22x = 109,163,442,863,412.12
  5. Step 5: Solve for x
    x = 109,163,442,863,412.12/12,919,858.22
  6. Step 6: Final answer
    x = 8,449,275.61

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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.