Home / 8,630,137.28-12,947,313.54-2,872,859.78

Finding the Fourth Proportional to 8,630,137.28, 12,947,313.54 and 2,872,859.78

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Solution

The fourth proportional to 8,630,137.28, 12,947,313.54 and 2,872,859.78 is: 4,309,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630,137.28 : 12,947,313.54 = 2,872,859.78 : x
  2. Step 2: Convert to fraction form
    8,630,137.28/12,947,313.54 = 2,872,859.78/x
  3. Step 3: Cross multiply
    8,630,137.28x = 12,947,313.54 × 2,872,859.78
  4. Step 4: Simplify right side
    8,630,137.28x = 37,195,816,328,115.41
  5. Step 5: Solve for x
    x = 37,195,816,328,115.41/8,630,137.28
  6. Step 6: Final answer
    x = 4,309,991.27

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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.