Home / 15,529,615.38-21,431,025.09-8,560,540.50

Finding the Fourth Proportional to 15,529,615.38, 21,431,025.09 and 8,560,540.50

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Solution

The fourth proportional to 15,529,615.38, 21,431,025.09 and 8,560,540.50 is: 11,813,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529,615.38 : 21,431,025.09 = 8,560,540.50 : x
  2. Step 2: Convert to fraction form
    15,529,615.38/21,431,025.09 = 8,560,540.50/x
  3. Step 3: Cross multiply
    15,529,615.38x = 21,431,025.09 × 8,560,540.50
  4. Step 4: Simplify right side
    15,529,615.38x = 183,461,158,239,461.16
  5. Step 5: Solve for x
    x = 183,461,158,239,461.16/15,529,615.38
  6. Step 6: Final answer
    x = 11,813,631.81

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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.