Home / 8,685,313.05-11,987,169.44-4,819,079.78

Finding the Fourth Proportional to 8,685,313.05, 11,987,169.44 and 4,819,079.78

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Solution

The fourth proportional to 8,685,313.05, 11,987,169.44 and 4,819,079.78 is: 6,651,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,313.05 : 11,987,169.44 = 4,819,079.78 : x
  2. Step 2: Convert to fraction form
    8,685,313.05/11,987,169.44 = 4,819,079.78/x
  3. Step 3: Cross multiply
    8,685,313.05x = 11,987,169.44 × 4,819,079.78
  4. Step 4: Simplify right side
    8,685,313.05x = 57,767,125,783,706.69
  5. Step 5: Solve for x
    x = 57,767,125,783,706.69/8,685,313.05
  6. Step 6: Final answer
    x = 6,651,127.65

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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.