Home / 663,871,055.09-995,792,907.97-221,245,878.59

Finding the Fourth Proportional to 663,871,055.09, 995,792,907.97 and 221,245,878.59

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Solution

The fourth proportional to 663,871,055.09, 995,792,907.97 and 221,245,878.59 is: 331,864,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,871,055.09 : 995,792,907.97 = 221,245,878.59 : x
  2. Step 2: Convert to fraction form
    663,871,055.09/995,792,907.97 = 221,245,878.59/x
  3. Step 3: Cross multiply
    663,871,055.09x = 995,792,907.97 × 221,245,878.59
  4. Step 4: Simplify right side
    663,871,055.09x = 220,315,076,819,450,016
  5. Step 5: Solve for x
    x = 220,315,076,819,450,016/663,871,055.09
  6. Step 6: Final answer
    x = 331,864,260.58

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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.