Home / 13,331,765.88-18,397,860.18-7,220,194.38

Finding the Fourth Proportional to 13,331,765.88, 18,397,860.18 and 7,220,194.38

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Solution

The fourth proportional to 13,331,765.88, 18,397,860.18 and 7,220,194.38 is: 9,963,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,765.88 : 18,397,860.18 = 7,220,194.38 : x
  2. Step 2: Convert to fraction form
    13,331,765.88/18,397,860.18 = 7,220,194.38/x
  3. Step 3: Cross multiply
    13,331,765.88x = 18,397,860.18 × 7,220,194.38
  4. Step 4: Simplify right side
    13,331,765.88x = 132,836,126,675,661.78
  5. Step 5: Solve for x
    x = 132,836,126,675,661.78/13,331,765.88
  6. Step 6: Final answer
    x = 9,963,880.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.