Home / 66,869,262.68-100,327,786.56-40,661,419.41

Finding the Fourth Proportional to 66,869,262.68, 100,327,786.56 and 40,661,419.41

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Solution

The fourth proportional to 66,869,262.68, 100,327,786.56 and 40,661,419.41 is: 61,006,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,869,262.68 : 100,327,786.56 = 40,661,419.41 : x
  2. Step 2: Convert to fraction form
    66,869,262.68/100,327,786.56 = 40,661,419.41/x
  3. Step 3: Cross multiply
    66,869,262.68x = 100,327,786.56 × 40,661,419.41
  4. Step 4: Simplify right side
    66,869,262.68x = 4,079,470,207,793,121
  5. Step 5: Solve for x
    x = 4,079,470,207,793,121/66,869,262.68
  6. Step 6: Final answer
    x = 61,006,657.54

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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.