Home / 12,800,314.92-19,200,490.85-5,227,280.67

Finding the Fourth Proportional to 12,800,314.92, 19,200,490.85 and 5,227,280.67

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Solution

The fourth proportional to 12,800,314.92, 19,200,490.85 and 5,227,280.67 is: 7,840,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,314.92 : 19,200,490.85 = 5,227,280.67 : x
  2. Step 2: Convert to fraction form
    12,800,314.92/19,200,490.85 = 5,227,280.67/x
  3. Step 3: Cross multiply
    12,800,314.92x = 19,200,490.85 × 5,227,280.67
  4. Step 4: Simplify right side
    12,800,314.92x = 100,366,354,578,714.42
  5. Step 5: Solve for x
    x = 100,366,354,578,714.42/12,800,314.92
  6. Step 6: Final answer
    x = 7,840,928.54

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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.