Home / 13,189,813.20-19,784,063.70-6,800,711.40

Finding the Fourth Proportional to 13,189,813.20, 19,784,063.70 and 6,800,711.40

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Solution

The fourth proportional to 13,189,813.20, 19,784,063.70 and 6,800,711.40 is: 10,200,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,813.20 : 19,784,063.70 = 6,800,711.40 : x
  2. Step 2: Convert to fraction form
    13,189,813.20/19,784,063.70 = 6,800,711.40/x
  3. Step 3: Cross multiply
    13,189,813.20x = 19,784,063.70 × 6,800,711.40
  4. Step 4: Simplify right side
    13,189,813.20x = 134,545,707,542,916.19
  5. Step 5: Solve for x
    x = 134,545,707,542,916.19/13,189,813.20
  6. Step 6: Final answer
    x = 10,200,728.81

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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.