Home / 13,790,334.60-20,654,009.10-8,121,630.60

Finding the Fourth Proportional to 13,790,334.60, 20,654,009.10 and 8,121,630.60

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Solution

The fourth proportional to 13,790,334.60, 20,654,009.10 and 8,121,630.60 is: 12,163,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,334.60 : 20,654,009.10 = 8,121,630.60 : x
  2. Step 2: Convert to fraction form
    13,790,334.60/20,654,009.10 = 8,121,630.60/x
  3. Step 3: Cross multiply
    13,790,334.60x = 20,654,009.10 × 8,121,630.60
  4. Step 4: Simplify right side
    13,790,334.60x = 167,744,232,319,238.47
  5. Step 5: Solve for x
    x = 167,744,232,319,238.47/13,790,334.60
  6. Step 6: Final answer
    x = 12,163,898.64

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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.