Home / 131,127,404.52-180,951,078.24-72,388,810.89

Finding the Fourth Proportional to 131,127,404.52, 180,951,078.24 and 72,388,810.89

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Solution

The fourth proportional to 131,127,404.52, 180,951,078.24 and 72,388,810.89 is: 99,893,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127,404.52 : 180,951,078.24 = 72,388,810.89 : x
  2. Step 2: Convert to fraction form
    131,127,404.52/180,951,078.24 = 72,388,810.89/x
  3. Step 3: Cross multiply
    131,127,404.52x = 180,951,078.24 × 72,388,810.89
  4. Step 4: Simplify right side
    131,127,404.52x = 13,098,833,383,056,954
  5. Step 5: Solve for x
    x = 13,098,833,383,056,954/131,127,404.52
  6. Step 6: Final answer
    x = 99,893,942.32

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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.