Home / 66,431,940.40-99,647,910.60-40,789,802.80

Finding the Fourth Proportional to 66,431,940.40, 99,647,910.60 and 40,789,802.80

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Solution

The fourth proportional to 66,431,940.40, 99,647,910.60 and 40,789,802.80 is: 61,184,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,940.40 : 99,647,910.60 = 40,789,802.80 : x
  2. Step 2: Convert to fraction form
    66,431,940.40/99,647,910.60 = 40,789,802.80/x
  3. Step 3: Cross multiply
    66,431,940.40x = 99,647,910.60 × 40,789,802.80
  4. Step 4: Simplify right side
    66,431,940.40x = 4,064,618,622,806,029
  5. Step 5: Solve for x
    x = 4,064,618,622,806,029/66,431,940.40
  6. Step 6: Final answer
    x = 61,184,704.20

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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.