Home / 180,469,986.84-270,672,980.81-82,078,647.21

Finding the Fourth Proportional to 180,469,986.84, 270,672,980.81 and 82,078,647.21

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Solution

The fourth proportional to 180,469,986.84, 270,672,980.81 and 82,078,647.21 is: 123,103,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,469,986.84 : 270,672,980.81 = 82,078,647.21 : x
  2. Step 2: Convert to fraction form
    180,469,986.84/270,672,980.81 = 82,078,647.21/x
  3. Step 3: Cross multiply
    180,469,986.84x = 270,672,980.81 × 82,078,647.21
  4. Step 4: Simplify right side
    180,469,986.84x = 22,216,472,100,772,696
  5. Step 5: Solve for x
    x = 22,216,472,100,772,696/180,469,986.84
  6. Step 6: Final answer
    x = 123,103,417.30

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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.