Home / 12,427,629-18,642,107.80-3,908,629.77

Finding the Fourth Proportional to 12,427,629, 18,642,107.80 and 3,908,629.77

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Solution

The fourth proportional to 12,427,629, 18,642,107.80 and 3,908,629.77 is: 5,863,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,629 : 18,642,107.80 = 3,908,629.77 : x
  2. Step 2: Convert to fraction form
    12,427,629/18,642,107.80 = 3,908,629.77/x
  3. Step 3: Cross multiply
    12,427,629x = 18,642,107.80 × 3,908,629.77
  4. Step 4: Simplify right side
    12,427,629x = 72,865,097,532,400.78
  5. Step 5: Solve for x
    x = 72,865,097,532,400.78/12,427,629
  6. Step 6: Final answer
    x = 5,863,153.59

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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.