Home / 15,109,004.21-20,849,428.23-8,494,612.25

Finding the Fourth Proportional to 15,109,004.21, 20,849,428.23 and 8,494,612.25

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Solution

The fourth proportional to 15,109,004.21, 20,849,428.23 and 8,494,612.25 is: 11,722,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109,004.21 : 20,849,428.23 = 8,494,612.25 : x
  2. Step 2: Convert to fraction form
    15,109,004.21/20,849,428.23 = 8,494,612.25/x
  3. Step 3: Cross multiply
    15,109,004.21x = 20,849,428.23 × 8,494,612.25
  4. Step 4: Simplify right side
    15,109,004.21x = 177,107,808,448,053.81
  5. Step 5: Solve for x
    x = 177,107,808,448,053.81/15,109,004.21
  6. Step 6: Final answer
    x = 11,722,004.04

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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.