Home / 13,513,749.72-20,274,079.87-3,929,128.24

Finding the Fourth Proportional to 13,513,749.72, 20,274,079.87 and 3,929,128.24

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Solution

The fourth proportional to 13,513,749.72, 20,274,079.87 and 3,929,128.24 is: 5,894,696.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,749.72 : 20,274,079.87 = 3,929,128.24 : x
  2. Step 2: Convert to fraction form
    13,513,749.72/20,274,079.87 = 3,929,128.24/x
  3. Step 3: Cross multiply
    13,513,749.72x = 20,274,079.87 × 3,929,128.24
  4. Step 4: Simplify right side
    13,513,749.72x = 79,659,459,757,232.53
  5. Step 5: Solve for x
    x = 79,659,459,757,232.53/13,513,749.72
  6. Step 6: Final answer
    x = 5,894,696.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.