Home / 12,097,115.20-18,145,672.80-11,686,542.40

Finding the Fourth Proportional to 12,097,115.20, 18,145,672.80 and 11,686,542.40

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Solution

The fourth proportional to 12,097,115.20, 18,145,672.80 and 11,686,542.40 is: 17,529,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,115.20 : 18,145,672.80 = 11,686,542.40 : x
  2. Step 2: Convert to fraction form
    12,097,115.20/18,145,672.80 = 11,686,542.40/x
  3. Step 3: Cross multiply
    12,097,115.20x = 18,145,672.80 × 11,686,542.40
  4. Step 4: Simplify right side
    12,097,115.20x = 212,060,174,553,726.75
  5. Step 5: Solve for x
    x = 212,060,174,553,726.75/12,097,115.20
  6. Step 6: Final answer
    x = 17,529,813.60

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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.