Home / 89,369,072.20-134,053,608.30-85,212,022.60

Finding the Fourth Proportional to 89,369,072.20, 134,053,608.30 and 85,212,022.60

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Solution

The fourth proportional to 89,369,072.20, 134,053,608.30 and 85,212,022.60 is: 127,818,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,369,072.20 : 134,053,608.30 = 85,212,022.60 : x
  2. Step 2: Convert to fraction form
    89,369,072.20/134,053,608.30 = 85,212,022.60/x
  3. Step 3: Cross multiply
    89,369,072.20x = 134,053,608.30 × 85,212,022.60
  4. Step 4: Simplify right side
    89,369,072.20x = 11,422,979,100,071,146
  5. Step 5: Solve for x
    x = 11,422,979,100,071,146/89,369,072.20
  6. Step 6: Final answer
    x = 127,818,033.90

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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.