Home / 12,791,299.95-17,653,794.21-8,143,600.32

Finding the Fourth Proportional to 12,791,299.95, 17,653,794.21 and 8,143,600.32

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Solution

The fourth proportional to 12,791,299.95, 17,653,794.21 and 8,143,600.32 is: 11,239,314.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,299.95 : 17,653,794.21 = 8,143,600.32 : x
  2. Step 2: Convert to fraction form
    12,791,299.95/17,653,794.21 = 8,143,600.32/x
  3. Step 3: Cross multiply
    12,791,299.95x = 17,653,794.21 × 8,143,600.32
  4. Step 4: Simplify right side
    12,791,299.95x = 143,765,444,177,770.16
  5. Step 5: Solve for x
    x = 143,765,444,177,770.16/12,791,299.95
  6. Step 6: Final answer
    x = 11,239,314.59

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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.