Home / 12,214,975.60-18,336,460.20-7,169,129.20

Finding the Fourth Proportional to 12,214,975.60, 18,336,460.20 and 7,169,129.20

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Solution

The fourth proportional to 12,214,975.60, 18,336,460.20 and 7,169,129.20 is: 10,761,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214,975.60 : 18,336,460.20 = 7,169,129.20 : x
  2. Step 2: Convert to fraction form
    12,214,975.60/18,336,460.20 = 7,169,129.20/x
  3. Step 3: Cross multiply
    12,214,975.60x = 18,336,460.20 × 7,169,129.20
  4. Step 4: Simplify right side
    12,214,975.60x = 131,456,452,244,457.84
  5. Step 5: Solve for x
    x = 131,456,452,244,457.84/12,214,975.60
  6. Step 6: Final answer
    x = 10,761,908.71

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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.