Home / 82,571,689.80-123,857,534.70-55,361,910.60

Finding the Fourth Proportional to 82,571,689.80, 123,857,534.70 and 55,361,910.60

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Solution

The fourth proportional to 82,571,689.80, 123,857,534.70 and 55,361,910.60 is: 83,042,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,571,689.80 : 123,857,534.70 = 55,361,910.60 : x
  2. Step 2: Convert to fraction form
    82,571,689.80/123,857,534.70 = 55,361,910.60/x
  3. Step 3: Cross multiply
    82,571,689.80x = 123,857,534.70 × 55,361,910.60
  4. Step 4: Simplify right side
    82,571,689.80x = 6,856,989,763,197,798
  5. Step 5: Solve for x
    x = 6,856,989,763,197,798/82,571,689.80
  6. Step 6: Final answer
    x = 83,042,865.90

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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.