Home / 663,871,056.59-995,792,910.21-221,245,880.09

Finding the Fourth Proportional to 663,871,056.59, 995,792,910.21 and 221,245,880.09

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Solution

The fourth proportional to 663,871,056.59, 995,792,910.21 and 221,245,880.09 is: 331,864,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,871,056.59 : 995,792,910.21 = 221,245,880.09 : x
  2. Step 2: Convert to fraction form
    663,871,056.59/995,792,910.21 = 221,245,880.09/x
  3. Step 3: Cross multiply
    663,871,056.59x = 995,792,910.21 × 221,245,880.09
  4. Step 4: Simplify right side
    663,871,056.59x = 220,315,078,801,814,848
  5. Step 5: Solve for x
    x = 220,315,078,801,814,848/663,871,056.59
  6. Step 6: Final answer
    x = 331,864,262.82

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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.