Home / 11,820,898.20-17,717,569.20-5,431,796.40

Finding the Fourth Proportional to 11,820,898.20, 17,717,569.20 and 5,431,796.40

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Solution

The fourth proportional to 11,820,898.20, 17,717,569.20 and 5,431,796.40 is: 8,141,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820,898.20 : 17,717,569.20 = 5,431,796.40 : x
  2. Step 2: Convert to fraction form
    11,820,898.20/17,717,569.20 = 5,431,796.40/x
  3. Step 3: Cross multiply
    11,820,898.20x = 17,717,569.20 × 5,431,796.40
  4. Step 4: Simplify right side
    11,820,898.20x = 96,238,228,597,310.88
  5. Step 5: Solve for x
    x = 96,238,228,597,310.88/11,820,898.20
  6. Step 6: Final answer
    x = 8,141,363.45

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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.