Home / 81,902,357.82-113,024,560.95-45,232,141.50

Finding the Fourth Proportional to 81,902,357.82, 113,024,560.95 and 45,232,141.50

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Solution

The fourth proportional to 81,902,357.82, 113,024,560.95 and 45,232,141.50 is: 62,419,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,902,357.82 : 113,024,560.95 = 45,232,141.50 : x
  2. Step 2: Convert to fraction form
    81,902,357.82/113,024,560.95 = 45,232,141.50/x
  3. Step 3: Cross multiply
    81,902,357.82x = 113,024,560.95 × 45,232,141.50
  4. Step 4: Simplify right side
    81,902,357.82x = 5,112,342,933,865,775
  5. Step 5: Solve for x
    x = 5,112,342,933,865,775/81,902,357.82
  6. Step 6: Final answer
    x = 62,419,972.63

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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.