Home / 13,214,380.34-19,820,773.97-7,857,122.92

Finding the Fourth Proportional to 13,214,380.34, 19,820,773.97 and 7,857,122.92

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Solution

The fourth proportional to 13,214,380.34, 19,820,773.97 and 7,857,122.92 is: 11,785,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214,380.34 : 19,820,773.97 = 7,857,122.92 : x
  2. Step 2: Convert to fraction form
    13,214,380.34/19,820,773.97 = 7,857,122.92/x
  3. Step 3: Cross multiply
    13,214,380.34x = 19,820,773.97 × 7,857,122.92
  4. Step 4: Simplify right side
    13,214,380.34x = 155,734,257,352,722.50
  5. Step 5: Solve for x
    x = 155,734,257,352,722.50/13,214,380.34
  6. Step 6: Final answer
    x = 11,785,210.76

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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.