Home / 8,278,905.10-12,418,357.65-7,019,193.10

Finding the Fourth Proportional to 8,278,905.10, 12,418,357.65 and 7,019,193.10

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Solution

The fourth proportional to 8,278,905.10, 12,418,357.65 and 7,019,193.10 is: 10,528,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,905.10 : 12,418,357.65 = 7,019,193.10 : x
  2. Step 2: Convert to fraction form
    8,278,905.10/12,418,357.65 = 7,019,193.10/x
  3. Step 3: Cross multiply
    8,278,905.10x = 12,418,357.65 × 7,019,193.10
  4. Step 4: Simplify right side
    8,278,905.10x = 87,166,850,330,212.22
  5. Step 5: Solve for x
    x = 87,166,850,330,212.22/8,278,905.10
  6. Step 6: Final answer
    x = 10,528,789.65

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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.