Home / 15,180,856.80-20,949,818.58-8,305,453.68

Finding the Fourth Proportional to 15,180,856.80, 20,949,818.58 and 8,305,453.68

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Solution

The fourth proportional to 15,180,856.80, 20,949,818.58 and 8,305,453.68 is: 11,461,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180,856.80 : 20,949,818.58 = 8,305,453.68 : x
  2. Step 2: Convert to fraction form
    15,180,856.80/20,949,818.58 = 8,305,453.68/x
  3. Step 3: Cross multiply
    15,180,856.80x = 20,949,818.58 × 8,305,453.68
  4. Step 4: Simplify right side
    15,180,856.80x = 173,997,747,820,593.34
  5. Step 5: Solve for x
    x = 173,997,747,820,593.34/15,180,856.80
  6. Step 6: Final answer
    x = 11,461,655.30

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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.