Home / 12,380,586.40-18,570,879.60-12,191,629.60

Finding the Fourth Proportional to 12,380,586.40, 18,570,879.60 and 12,191,629.60

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Solution

The fourth proportional to 12,380,586.40, 18,570,879.60 and 12,191,629.60 is: 18,287,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380,586.40 : 18,570,879.60 = 12,191,629.60 : x
  2. Step 2: Convert to fraction form
    12,380,586.40/18,570,879.60 = 12,191,629.60/x
  3. Step 3: Cross multiply
    12,380,586.40x = 18,570,879.60 × 12,191,629.60
  4. Step 4: Simplify right side
    12,380,586.40x = 226,409,285,429,396.16
  5. Step 5: Solve for x
    x = 226,409,285,429,396.16/12,380,586.40
  6. Step 6: Final answer
    x = 18,287,444.40

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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.