Home / 13,012,129.58-17,956,844.44-7,211,006.78

Finding the Fourth Proportional to 13,012,129.58, 17,956,844.44 and 7,211,006.78

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Solution

The fourth proportional to 13,012,129.58, 17,956,844.44 and 7,211,006.78 is: 9,951,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,129.58 : 17,956,844.44 = 7,211,006.78 : x
  2. Step 2: Convert to fraction form
    13,012,129.58/17,956,844.44 = 7,211,006.78/x
  3. Step 3: Cross multiply
    13,012,129.58x = 17,956,844.44 × 7,211,006.78
  4. Step 4: Simplify right side
    13,012,129.58x = 129,486,926,896,433.58
  5. Step 5: Solve for x
    x = 129,486,926,896,433.58/13,012,129.58
  6. Step 6: Final answer
    x = 9,951,247.88

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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.