Home / 78,620,437.44-108,494,729.28-43,812,360.96

Finding the Fourth Proportional to 78,620,437.44, 108,494,729.28 and 43,812,360.96

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Solution

The fourth proportional to 78,620,437.44, 108,494,729.28 and 43,812,360.96 is: 60,460,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,620,437.44 : 108,494,729.28 = 43,812,360.96 : x
  2. Step 2: Convert to fraction form
    78,620,437.44/108,494,729.28 = 43,812,360.96/x
  3. Step 3: Cross multiply
    78,620,437.44x = 108,494,729.28 × 43,812,360.96
  4. Step 4: Simplify right side
    78,620,437.44x = 4,753,410,241,472,841
  5. Step 5: Solve for x
    x = 4,753,410,241,472,841/78,620,437.44
  6. Step 6: Final answer
    x = 60,460,236.50

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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.