Home / 12,387,108.60-18,580,662.90-9,198,462.60

Finding the Fourth Proportional to 12,387,108.60, 18,580,662.90 and 9,198,462.60

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Solution

The fourth proportional to 12,387,108.60, 18,580,662.90 and 9,198,462.60 is: 13,797,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,108.60 : 18,580,662.90 = 9,198,462.60 : x
  2. Step 2: Convert to fraction form
    12,387,108.60/18,580,662.90 = 9,198,462.60/x
  3. Step 3: Cross multiply
    12,387,108.60x = 18,580,662.90 × 9,198,462.60
  4. Step 4: Simplify right side
    12,387,108.60x = 170,913,532,768,857.53
  5. Step 5: Solve for x
    x = 170,913,532,768,857.53/12,387,108.60
  6. Step 6: Final answer
    x = 13,797,693.90

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1.5x scale

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.