Home / 71,736,006.60-107,604,009.90-66,193,273.80

Finding the Fourth Proportional to 71,736,006.60, 107,604,009.90 and 66,193,273.80

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Solution

The fourth proportional to 71,736,006.60, 107,604,009.90 and 66,193,273.80 is: 99,289,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736,006.60 : 107,604,009.90 = 66,193,273.80 : x
  2. Step 2: Convert to fraction form
    71,736,006.60/107,604,009.90 = 66,193,273.80/x
  3. Step 3: Cross multiply
    71,736,006.60x = 107,604,009.90 × 66,193,273.80
  4. Step 4: Simplify right side
    71,736,006.60x = 7,122,661,689,288,611
  5. Step 5: Solve for x
    x = 7,122,661,689,288,611/71,736,006.60
  6. Step 6: Final answer
    x = 99,289,910.70

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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.