Home / 15,057,619.94-20,777,828.90-8,529,851.38

Finding the Fourth Proportional to 15,057,619.94, 20,777,828.90 and 8,529,851.38

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Solution

The fourth proportional to 15,057,619.94, 20,777,828.90 and 8,529,851.38 is: 11,770,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,619.94 : 20,777,828.90 = 8,529,851.38 : x
  2. Step 2: Convert to fraction form
    15,057,619.94/20,777,828.90 = 8,529,851.38/x
  3. Step 3: Cross multiply
    15,057,619.94x = 20,777,828.90 × 8,529,851.38
  4. Step 4: Simplify right side
    15,057,619.94x = 177,231,792,516,068.88
  5. Step 5: Solve for x
    x = 177,231,792,516,068.88/15,057,619.94
  6. Step 6: Final answer
    x = 11,770,239.47

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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.