Home / 12,619,639.53-18,932,643.86-3,521,729.61

Finding the Fourth Proportional to 12,619,639.53, 18,932,643.86 and 3,521,729.61

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Solution

The fourth proportional to 12,619,639.53, 18,932,643.86 and 3,521,729.61 is: 5,283,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619,639.53 : 18,932,643.86 = 3,521,729.61 : x
  2. Step 2: Convert to fraction form
    12,619,639.53/18,932,643.86 = 3,521,729.61/x
  3. Step 3: Cross multiply
    12,619,639.53x = 18,932,643.86 × 3,521,729.61
  4. Step 4: Simplify right side
    12,619,639.53x = 66,675,652,459,738.05
  5. Step 5: Solve for x
    x = 66,675,652,459,738.05/12,619,639.53
  6. Step 6: Final answer
    x = 5,283,483.12

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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.