Home / 12,378,020.40-18,531,601.20-10,960,844.40

Finding the Fourth Proportional to 12,378,020.40, 18,531,601.20 and 10,960,844.40

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Solution

The fourth proportional to 12,378,020.40, 18,531,601.20 and 10,960,844.40 is: 16,409,893.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,020.40 : 18,531,601.20 = 10,960,844.40 : x
  2. Step 2: Convert to fraction form
    12,378,020.40/18,531,601.20 = 10,960,844.40/x
  3. Step 3: Cross multiply
    12,378,020.40x = 18,531,601.20 × 10,960,844.40
  4. Step 4: Simplify right side
    12,378,020.40x = 203,121,997,236,053.28
  5. Step 5: Solve for x
    x = 203,121,997,236,053.28/12,378,020.40
  6. Step 6: Final answer
    x = 16,409,893.56

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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.