Home / 78,393,299.28-108,177,137.38-43,113,588.50

Finding the Fourth Proportional to 78,393,299.28, 108,177,137.38 and 43,113,588.50

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Solution

The fourth proportional to 78,393,299.28, 108,177,137.38 and 43,113,588.50 is: 59,493,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,393,299.28 : 108,177,137.38 = 43,113,588.50 : x
  2. Step 2: Convert to fraction form
    78,393,299.28/108,177,137.38 = 43,113,588.50/x
  3. Step 3: Cross multiply
    78,393,299.28x = 108,177,137.38 × 43,113,588.50
  4. Step 4: Simplify right side
    78,393,299.28x = 4,663,904,586,109,288
  5. Step 5: Solve for x
    x = 4,663,904,586,109,288/78,393,299.28
  6. Step 6: Final answer
    x = 59,493,663.73

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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.