Home / 12,515,443.43-18,769,549.30-5,688,212.63

Finding the Fourth Proportional to 12,515,443.43, 18,769,549.30 and 5,688,212.63

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Solution

The fourth proportional to 12,515,443.43, 18,769,549.30 and 5,688,212.63 is: 8,530,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,443.43 : 18,769,549.30 = 5,688,212.63 : x
  2. Step 2: Convert to fraction form
    12,515,443.43/18,769,549.30 = 5,688,212.63/x
  3. Step 3: Cross multiply
    12,515,443.43x = 18,769,549.30 × 5,688,212.63
  4. Step 4: Simplify right side
    12,515,443.43x = 106,765,187,279,599.38
  5. Step 5: Solve for x
    x = 106,765,187,279,599.38/12,515,443.43
  6. Step 6: Final answer
    x = 8,530,675.55

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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.