Home / 20,725,105.20-31,087,366.20-9,365,535.60

Finding the Fourth Proportional to 20,725,105.20, 31,087,366.20 and 9,365,535.60

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Solution

The fourth proportional to 20,725,105.20, 31,087,366.20 and 9,365,535.60 is: 14,048,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,105.20 : 31,087,366.20 = 9,365,535.60 : x
  2. Step 2: Convert to fraction form
    20,725,105.20/31,087,366.20 = 9,365,535.60/x
  3. Step 3: Cross multiply
    20,725,105.20x = 31,087,366.20 × 9,365,535.60
  4. Step 4: Simplify right side
    20,725,105.20x = 291,149,834,856,336.69
  5. Step 5: Solve for x
    x = 291,149,834,856,336.69/20,725,105.20
  6. Step 6: Final answer
    x = 14,048,171.63

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1.5x scale

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.