Home / 57,721,409.85-79,654,561.52-31,259,548.92

Finding the Fourth Proportional to 57,721,409.85, 79,654,561.52 and 31,259,548.92

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Solution

The fourth proportional to 57,721,409.85, 79,654,561.52 and 31,259,548.92 is: 43,137,644.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,721,409.85 : 79,654,561.52 = 31,259,548.92 : x
  2. Step 2: Convert to fraction form
    57,721,409.85/79,654,561.52 = 31,259,548.92/x
  3. Step 3: Cross multiply
    57,721,409.85x = 79,654,561.52 × 31,259,548.92
  4. Step 4: Simplify right side
    57,721,409.85x = 2,489,965,662,677,996.50
  5. Step 5: Solve for x
    x = 2,489,965,662,677,996.50/57,721,409.85
  6. Step 6: Final answer
    x = 43,137,644.58

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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.