Home / 19,720,406.40-29,580,609.60-11,217,350.40

Finding the Fourth Proportional to 19,720,406.40, 29,580,609.60 and 11,217,350.40

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Solution

The fourth proportional to 19,720,406.40, 29,580,609.60 and 11,217,350.40 is: 16,826,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,406.40 : 29,580,609.60 = 11,217,350.40 : x
  2. Step 2: Convert to fraction form
    19,720,406.40/29,580,609.60 = 11,217,350.40/x
  3. Step 3: Cross multiply
    19,720,406.40x = 29,580,609.60 × 11,217,350.40
  4. Step 4: Simplify right side
    19,720,406.40x = 331,816,062,928,803.88
  5. Step 5: Solve for x
    x = 331,816,062,928,803.88/19,720,406.40
  6. Step 6: Final answer
    x = 16,826,025.60

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Double scale
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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.