Home / 12,768,057.10-19,152,085.65-5,200,453.90

Finding the Fourth Proportional to 12,768,057.10, 19,152,085.65 and 5,200,453.90

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Solution

The fourth proportional to 12,768,057.10, 19,152,085.65 and 5,200,453.90 is: 7,800,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,057.10 : 19,152,085.65 = 5,200,453.90 : x
  2. Step 2: Convert to fraction form
    12,768,057.10/19,152,085.65 = 5,200,453.90/x
  3. Step 3: Cross multiply
    12,768,057.10x = 19,152,085.65 × 5,200,453.90
  4. Step 4: Simplify right side
    12,768,057.10x = 99,599,538,511,676.53
  5. Step 5: Solve for x
    x = 99,599,538,511,676.53/12,768,057.10
  6. Step 6: Final answer
    x = 7,800,680.85

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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.