Home / 131,127,408.52-180,951,083.76-72,388,814.89

Finding the Fourth Proportional to 131,127,408.52, 180,951,083.76 and 72,388,814.89

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Solution

The fourth proportional to 131,127,408.52, 180,951,083.76 and 72,388,814.89 is: 99,893,947.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127,408.52 : 180,951,083.76 = 72,388,814.89 : x
  2. Step 2: Convert to fraction form
    131,127,408.52/180,951,083.76 = 72,388,814.89/x
  3. Step 3: Cross multiply
    131,127,408.52x = 180,951,083.76 × 72,388,814.89
  4. Step 4: Simplify right side
    131,127,408.52x = 13,098,834,506,447,524
  5. Step 5: Solve for x
    x = 13,098,834,506,447,524/131,127,408.52
  6. Step 6: Final answer
    x = 99,893,947.84

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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.