Home / 66,651,921.03-91,986,578.19-38,395,268.67

Finding the Fourth Proportional to 66,651,921.03, 91,986,578.19 and 38,395,268.67

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Solution

The fourth proportional to 66,651,921.03, 91,986,578.19 and 38,395,268.67 is: 52,989,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,651,921.03 : 91,986,578.19 = 38,395,268.67 : x
  2. Step 2: Convert to fraction form
    66,651,921.03/91,986,578.19 = 38,395,268.67/x
  3. Step 3: Cross multiply
    66,651,921.03x = 91,986,578.19 × 38,395,268.67
  4. Step 4: Simplify right side
    66,651,921.03x = 3,531,849,383,639,012.50
  5. Step 5: Solve for x
    x = 3,531,849,383,639,012.50/66,651,921.03
  6. Step 6: Final answer
    x = 52,989,461.20

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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.