Home / 12,100,409.20-18,150,613.80-6,115,999.60

Finding the Fourth Proportional to 12,100,409.20, 18,150,613.80 and 6,115,999.60

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Solution

The fourth proportional to 12,100,409.20, 18,150,613.80 and 6,115,999.60 is: 9,173,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,409.20 : 18,150,613.80 = 6,115,999.60 : x
  2. Step 2: Convert to fraction form
    12,100,409.20/18,150,613.80 = 6,115,999.60/x
  3. Step 3: Cross multiply
    12,100,409.20x = 18,150,613.80 × 6,115,999.60
  4. Step 4: Simplify right side
    12,100,409.20x = 111,009,146,740,554.48
  5. Step 5: Solve for x
    x = 111,009,146,740,554.48/12,100,409.20
  6. Step 6: Final answer
    x = 9,173,999.40

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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.