Home / 8,685,310.05-11,987,165.30-4,819,076.78

Finding the Fourth Proportional to 8,685,310.05, 11,987,165.30 and 4,819,076.78

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Solution

The fourth proportional to 8,685,310.05, 11,987,165.30 and 4,819,076.78 is: 6,651,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,310.05 : 11,987,165.30 = 4,819,076.78 : x
  2. Step 2: Convert to fraction form
    8,685,310.05/11,987,165.30 = 4,819,076.78/x
  3. Step 3: Cross multiply
    8,685,310.05x = 11,987,165.30 × 4,819,076.78
  4. Step 4: Simplify right side
    8,685,310.05x = 57,767,069,871,220.53
  5. Step 5: Solve for x
    x = 57,767,069,871,220.53/8,685,310.05
  6. Step 6: Final answer
    x = 6,651,123.51

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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.