Home / 85,440,983.52-117,906,120.50-50,158,221.26

Finding the Fourth Proportional to 85,440,983.52, 117,906,120.50 and 50,158,221.26

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Solution

The fourth proportional to 85,440,983.52, 117,906,120.50 and 50,158,221.26 is: 69,216,914.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440,983.52 : 117,906,120.50 = 50,158,221.26 : x
  2. Step 2: Convert to fraction form
    85,440,983.52/117,906,120.50 = 50,158,221.26/x
  3. Step 3: Cross multiply
    85,440,983.52x = 117,906,120.50 × 50,158,221.26
  4. Step 4: Simplify right side
    85,440,983.52x = 5,913,961,279,947,222
  5. Step 5: Solve for x
    x = 5,913,961,279,947,222/85,440,983.52
  6. Step 6: Final answer
    x = 69,216,914.84

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1.5x scale

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.