Home / 72,070,988.70-108,112,383.09-20,952,944.94

Finding the Fourth Proportional to 72,070,988.70, 108,112,383.09 and 20,952,944.94

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Solution

The fourth proportional to 72,070,988.70, 108,112,383.09 and 20,952,944.94 is: 31,431,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,988.70 : 108,112,383.09 = 20,952,944.94 : x
  2. Step 2: Convert to fraction form
    72,070,988.70/108,112,383.09 = 20,952,944.94/x
  3. Step 3: Cross multiply
    72,070,988.70x = 108,112,383.09 × 20,952,944.94
  4. Step 4: Simplify right side
    72,070,988.70x = 2,265,272,810,216,957.50
  5. Step 5: Solve for x
    x = 2,265,272,810,216,957.50/72,070,988.70
  6. Step 6: Final answer
    x = 31,431,132.71

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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.