Home / 9,639,640.45-13,302,839.55-5,288,647.69

Finding the Fourth Proportional to 9,639,640.45, 13,302,839.55 and 5,288,647.69

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Solution

The fourth proportional to 9,639,640.45, 13,302,839.55 and 5,288,647.69 is: 7,298,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639,640.45 : 13,302,839.55 = 5,288,647.69 : x
  2. Step 2: Convert to fraction form
    9,639,640.45/13,302,839.55 = 5,288,647.69/x
  3. Step 3: Cross multiply
    9,639,640.45x = 13,302,839.55 × 5,288,647.69
  4. Step 4: Simplify right side
    9,639,640.45x = 70,354,031,656,548.15
  5. Step 5: Solve for x
    x = 70,354,031,656,548.15/9,639,640.45
  6. Step 6: Final answer
    x = 7,298,408.28

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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.