Home / 13,658,640.30-20,487,960.45-7,281,348.30

Finding the Fourth Proportional to 13,658,640.30, 20,487,960.45 and 7,281,348.30

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Solution

The fourth proportional to 13,658,640.30, 20,487,960.45 and 7,281,348.30 is: 10,922,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658,640.30 : 20,487,960.45 = 7,281,348.30 : x
  2. Step 2: Convert to fraction form
    13,658,640.30/20,487,960.45 = 7,281,348.30/x
  3. Step 3: Cross multiply
    13,658,640.30x = 20,487,960.45 × 7,281,348.30
  4. Step 4: Simplify right side
    13,658,640.30x = 149,179,975,993,074.72
  5. Step 5: Solve for x
    x = 149,179,975,993,074.72/13,658,640.30
  6. Step 6: Final answer
    x = 10,922,022.45

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Similar ratio
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1.5x scale

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.