Home / 7,149,983.72-10,718,928.78-3,103,430.12

Finding the Fourth Proportional to 7,149,983.72, 10,718,928.78 and 3,103,430.12

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Solution

The fourth proportional to 7,149,983.72, 10,718,928.78 and 3,103,430.12 is: 4,652,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,983.72 : 10,718,928.78 = 3,103,430.12 : x
  2. Step 2: Convert to fraction form
    7,149,983.72/10,718,928.78 = 3,103,430.12/x
  3. Step 3: Cross multiply
    7,149,983.72x = 10,718,928.78 × 3,103,430.12
  4. Step 4: Simplify right side
    7,149,983.72x = 33,265,446,429,986.85
  5. Step 5: Solve for x
    x = 33,265,446,429,986.85/7,149,983.72
  6. Step 6: Final answer
    x = 4,652,520.58

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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.