Home / 13,105,728.12-18,085,126.59-7,522,684.71

Finding the Fourth Proportional to 13,105,728.12, 18,085,126.59 and 7,522,684.71

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Solution

The fourth proportional to 13,105,728.12, 18,085,126.59 and 7,522,684.71 is: 10,380,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105,728.12 : 18,085,126.59 = 7,522,684.71 : x
  2. Step 2: Convert to fraction form
    13,105,728.12/18,085,126.59 = 7,522,684.71/x
  3. Step 3: Cross multiply
    13,105,728.12x = 18,085,126.59 × 7,522,684.71
  4. Step 4: Simplify right side
    13,105,728.12x = 136,048,705,277,007.44
  5. Step 5: Solve for x
    x = 136,048,705,277,007.44/13,105,728.12
  6. Step 6: Final answer
    x = 10,380,858.20

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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.