Home / 12,090,172.48-18,142,344.60-8,674,778.32

Finding the Fourth Proportional to 12,090,172.48, 18,142,344.60 and 8,674,778.32

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Solution

The fourth proportional to 12,090,172.48, 18,142,344.60 and 8,674,778.32 is: 13,017,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,172.48 : 18,142,344.60 = 8,674,778.32 : x
  2. Step 2: Convert to fraction form
    12,090,172.48/18,142,344.60 = 8,674,778.32/x
  3. Step 3: Cross multiply
    12,090,172.48x = 18,142,344.60 × 8,674,778.32
  4. Step 4: Simplify right side
    12,090,172.48x = 157,380,817,610,049.09
  5. Step 5: Solve for x
    x = 157,380,817,610,049.09/12,090,172.48
  6. Step 6: Final answer
    x = 13,017,251.65

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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.