Home / 67,165,915.60-100,756,074.03-18,643,974.49

Finding the Fourth Proportional to 67,165,915.60, 100,756,074.03 and 18,643,974.49

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Solution

The fourth proportional to 67,165,915.60, 100,756,074.03 and 18,643,974.49 is: 27,967,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,165,915.60 : 100,756,074.03 = 18,643,974.49 : x
  2. Step 2: Convert to fraction form
    67,165,915.60/100,756,074.03 = 18,643,974.49/x
  3. Step 3: Cross multiply
    67,165,915.60x = 100,756,074.03 × 18,643,974.49
  4. Step 4: Simplify right side
    67,165,915.60x = 1,878,493,673,927,871.25
  5. Step 5: Solve for x
    x = 1,878,493,673,927,871.25/67,165,915.60
  6. Step 6: Final answer
    x = 27,967,960.49

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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.