Home / 131,127,404.89-180,951,078.75-72,388,811.27

Finding the Fourth Proportional to 131,127,404.89, 180,951,078.75 and 72,388,811.27

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Solution

The fourth proportional to 131,127,404.89, 180,951,078.75 and 72,388,811.27 is: 99,893,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127,404.89 : 180,951,078.75 = 72,388,811.27 : x
  2. Step 2: Convert to fraction form
    131,127,404.89/180,951,078.75 = 72,388,811.27/x
  3. Step 3: Cross multiply
    131,127,404.89x = 180,951,078.75 × 72,388,811.27
  4. Step 4: Simplify right side
    131,127,404.89x = 13,098,833,488,736,656
  5. Step 5: Solve for x
    x = 13,098,833,488,736,656/131,127,404.89
  6. Step 6: Final answer
    x = 99,893,942.84

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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.