Home / 28,188,789.92-42,283,263.70-8,760,856.78

Finding the Fourth Proportional to 28,188,789.92, 42,283,263.70 and 8,760,856.78

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Solution

The fourth proportional to 28,188,789.92, 42,283,263.70 and 8,760,856.78 is: 13,141,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,789.92 : 42,283,263.70 = 8,760,856.78 : x
  2. Step 2: Convert to fraction form
    28,188,789.92/42,283,263.70 = 8,760,856.78/x
  3. Step 3: Cross multiply
    28,188,789.92x = 42,283,263.70 × 8,760,856.78
  4. Step 4: Simplify right side
    28,188,789.92x = 370,437,617,466,672.88
  5. Step 5: Solve for x
    x = 370,437,617,466,672.88/28,188,789.92
  6. Step 6: Final answer
    x = 13,141,309.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.