Home / 13,280,059.67-18,326,520.30-7,699,390.73

Finding the Fourth Proportional to 13,280,059.67, 18,326,520.30 and 7,699,390.73

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Solution

The fourth proportional to 13,280,059.67, 18,326,520.30 and 7,699,390.73 is: 10,625,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,059.67 : 18,326,520.30 = 7,699,390.73 : x
  2. Step 2: Convert to fraction form
    13,280,059.67/18,326,520.30 = 7,699,390.73/x
  3. Step 3: Cross multiply
    13,280,059.67x = 18,326,520.30 × 7,699,390.73
  4. Step 4: Simplify right side
    13,280,059.67x = 141,103,040,419,344.22
  5. Step 5: Solve for x
    x = 141,103,040,419,344.22/13,280,059.67
  6. Step 6: Final answer
    x = 10,625,181.21

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1.5x scale

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.