Home / 12,672,200.80-19,008,301.20-8,189,538.40

Finding the Fourth Proportional to 12,672,200.80, 19,008,301.20 and 8,189,538.40

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Solution

The fourth proportional to 12,672,200.80, 19,008,301.20 and 8,189,538.40 is: 12,284,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672,200.80 : 19,008,301.20 = 8,189,538.40 : x
  2. Step 2: Convert to fraction form
    12,672,200.80/19,008,301.20 = 8,189,538.40/x
  3. Step 3: Cross multiply
    12,672,200.80x = 19,008,301.20 × 8,189,538.40
  4. Step 4: Simplify right side
    12,672,200.80x = 155,669,212,596,166.09
  5. Step 5: Solve for x
    x = 155,669,212,596,166.09/12,672,200.80
  6. Step 6: Final answer
    x = 12,284,307.60

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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.