Home / 3,986,209,774.80-5,979,314,662.20-1,661,686,840.80

Finding the Fourth Proportional to 3,986,209,774.80, 5,979,314,662.20 and 1,661,686,840.80

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Solution

The fourth proportional to 3,986,209,774.80, 5,979,314,662.20 and 1,661,686,840.80 is: 2,492,530,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,209,774.80 : 5,979,314,662.20 = 1,661,686,840.80 : x
  2. Step 2: Convert to fraction form
    3,986,209,774.80/5,979,314,662.20 = 1,661,686,840.80/x
  3. Step 3: Cross multiply
    3,986,209,774.80x = 5,979,314,662.20 × 1,661,686,840.80
  4. Step 4: Simplify right side
    3,986,209,774.80x = 9,935,748,491,180,236,800
  5. Step 5: Solve for x
    x = 9,935,748,491,180,236,800/3,986,209,774.80
  6. Step 6: Final answer
    x = 2,492,530,261.20

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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.