Home / 663,871,077.88-995,792,942.08-221,245,901.40

Finding the Fourth Proportional to 663,871,077.88, 995,792,942.08 and 221,245,901.40

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Solution

The fourth proportional to 663,871,077.88, 995,792,942.08 and 221,245,901.40 is: 331,864,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,871,077.88 : 995,792,942.08 = 221,245,901.40 : x
  2. Step 2: Convert to fraction form
    663,871,077.88/995,792,942.08 = 221,245,901.40/x
  3. Step 3: Cross multiply
    663,871,077.88x = 995,792,942.08 × 221,245,901.40
  4. Step 4: Simplify right side
    663,871,077.88x = 220,315,107,078,247,616
  5. Step 5: Solve for x
    x = 220,315,107,078,247,616/663,871,077.88
  6. Step 6: Final answer
    x = 331,864,294.77

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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.