Home / 15,155,563.17-20,914,685.57-8,186,240.69

Finding the Fourth Proportional to 15,155,563.17, 20,914,685.57 and 8,186,240.69

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Solution

The fourth proportional to 15,155,563.17, 20,914,685.57 and 8,186,240.69 is: 11,297,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155,563.17 : 20,914,685.57 = 8,186,240.69 : x
  2. Step 2: Convert to fraction form
    15,155,563.17/20,914,685.57 = 8,186,240.69/x
  3. Step 3: Cross multiply
    15,155,563.17x = 20,914,685.57 × 8,186,240.69
  4. Step 4: Simplify right side
    15,155,563.17x = 171,212,649,886,185.22
  5. Step 5: Solve for x
    x = 171,212,649,886,185.22/15,155,563.17
  6. Step 6: Final answer
    x = 11,297,016.68

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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.