Home / 8,601,211.20-12,901,816.80-7,672,238.40

Finding the Fourth Proportional to 8,601,211.20, 12,901,816.80 and 7,672,238.40

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Solution

The fourth proportional to 8,601,211.20, 12,901,816.80 and 7,672,238.40 is: 11,508,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601,211.20 : 12,901,816.80 = 7,672,238.40 : x
  2. Step 2: Convert to fraction form
    8,601,211.20/12,901,816.80 = 7,672,238.40/x
  3. Step 3: Cross multiply
    8,601,211.20x = 12,901,816.80 × 7,672,238.40
  4. Step 4: Simplify right side
    8,601,211.20x = 98,985,814,282,725.12
  5. Step 5: Solve for x
    x = 98,985,814,282,725.12/8,601,211.20
  6. Step 6: Final answer
    x = 11,508,357.60

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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.