Home / 66,431,610.30-99,647,415.45-57,343,969.20

Finding the Fourth Proportional to 66,431,610.30, 99,647,415.45 and 57,343,969.20

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Solution

The fourth proportional to 66,431,610.30, 99,647,415.45 and 57,343,969.20 is: 86,015,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,610.30 : 99,647,415.45 = 57,343,969.20 : x
  2. Step 2: Convert to fraction form
    66,431,610.30/99,647,415.45 = 57,343,969.20/x
  3. Step 3: Cross multiply
    66,431,610.30x = 99,647,415.45 × 57,343,969.20
  4. Step 4: Simplify right side
    66,431,610.30x = 5,714,178,322,424,405
  5. Step 5: Solve for x
    x = 5,714,178,322,424,405/66,431,610.30
  6. Step 6: Final answer
    x = 86,015,953.80

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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.