Home / 12,427,628.75-18,642,107.43-3,908,629.52

Finding the Fourth Proportional to 12,427,628.75, 18,642,107.43 and 3,908,629.52

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Solution

The fourth proportional to 12,427,628.75, 18,642,107.43 and 3,908,629.52 is: 5,863,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,628.75 : 18,642,107.43 = 3,908,629.52 : x
  2. Step 2: Convert to fraction form
    12,427,628.75/18,642,107.43 = 3,908,629.52/x
  3. Step 3: Cross multiply
    12,427,628.75x = 18,642,107.43 × 3,908,629.52
  4. Step 4: Simplify right side
    12,427,628.75x = 72,865,091,406,137.75
  5. Step 5: Solve for x
    x = 72,865,091,406,137.75/12,427,628.75
  6. Step 6: Final answer
    x = 5,863,153.21

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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.