Home / 13,513,750.22-20,274,080.60-3,929,128.74

Finding the Fourth Proportional to 13,513,750.22, 20,274,080.60 and 3,929,128.74

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Solution

The fourth proportional to 13,513,750.22, 20,274,080.60 and 3,929,128.74 is: 5,894,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,750.22 : 20,274,080.60 = 3,929,128.74 : x
  2. Step 2: Convert to fraction form
    13,513,750.22/20,274,080.60 = 3,929,128.74/x
  3. Step 3: Cross multiply
    13,513,750.22x = 20,274,080.60 × 3,929,128.74
  4. Step 4: Simplify right side
    13,513,750.22x = 79,659,472,772,359.27
  5. Step 5: Solve for x
    x = 79,659,472,772,359.27/13,513,750.22
  6. Step 6: Final answer
    x = 5,894,697.73

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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.