Home / 87,469,006.73-120,706,511.63-47,776,562.80

Finding the Fourth Proportional to 87,469,006.73, 120,706,511.63 and 47,776,562.80

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Solution

The fourth proportional to 87,469,006.73, 120,706,511.63 and 47,776,562.80 is: 65,931,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,469,006.73 : 120,706,511.63 = 47,776,562.80 : x
  2. Step 2: Convert to fraction form
    87,469,006.73/120,706,511.63 = 47,776,562.80/x
  3. Step 3: Cross multiply
    87,469,006.73x = 120,706,511.63 × 47,776,562.80
  4. Step 4: Simplify right side
    87,469,006.73x = 5,766,942,232,718,976
  5. Step 5: Solve for x
    x = 5,766,942,232,718,976/87,469,006.73
  6. Step 6: Final answer
    x = 65,931,264.67

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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.