Home / 82,990,137.12-124,483,446.36-27,661,972.56

Finding the Fourth Proportional to 82,990,137.12, 124,483,446.36 and 27,661,972.56

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Solution

The fourth proportional to 82,990,137.12, 124,483,446.36 and 27,661,972.56 is: 41,492,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,990,137.12 : 124,483,446.36 = 27,661,972.56 : x
  2. Step 2: Convert to fraction form
    82,990,137.12/124,483,446.36 = 27,661,972.56/x
  3. Step 3: Cross multiply
    82,990,137.12x = 124,483,446.36 × 27,661,972.56
  4. Step 4: Simplify right side
    82,990,137.12x = 3,443,457,677,384,551.50
  5. Step 5: Solve for x
    x = 3,443,457,677,384,551.50/82,990,137.12
  6. Step 6: Final answer
    x = 41,492,372.43

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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.