Home / 12,129,015.60-18,193,523.40-6,460,311.60

Finding the Fourth Proportional to 12,129,015.60, 18,193,523.40 and 6,460,311.60

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Solution

The fourth proportional to 12,129,015.60, 18,193,523.40 and 6,460,311.60 is: 9,690,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,015.60 : 18,193,523.40 = 6,460,311.60 : x
  2. Step 2: Convert to fraction form
    12,129,015.60/18,193,523.40 = 6,460,311.60/x
  3. Step 3: Cross multiply
    12,129,015.60x = 18,193,523.40 × 6,460,311.60
  4. Step 4: Simplify right side
    12,129,015.60x = 117,535,830,265,891.42
  5. Step 5: Solve for x
    x = 117,535,830,265,891.42/12,129,015.60
  6. Step 6: Final answer
    x = 9,690,467.40

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Similar ratio
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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.