Home / 13,603,147.20-18,772,218.72-7,491,444.48

Finding the Fourth Proportional to 13,603,147.20, 18,772,218.72 and 7,491,444.48

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Solution

The fourth proportional to 13,603,147.20, 18,772,218.72 and 7,491,444.48 is: 10,338,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,147.20 : 18,772,218.72 = 7,491,444.48 : x
  2. Step 2: Convert to fraction form
    13,603,147.20/18,772,218.72 = 7,491,444.48/x
  3. Step 3: Cross multiply
    13,603,147.20x = 18,772,218.72 × 7,491,444.48
  4. Step 4: Simplify right side
    13,603,147.20x = 140,631,034,307,296.67
  5. Step 5: Solve for x
    x = 140,631,034,307,296.67/13,603,147.20
  6. Step 6: Final answer
    x = 10,338,124.86

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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.