Home / 10,890,816.30-16,300,795.05-8,481,617.10

Finding the Fourth Proportional to 10,890,816.30, 16,300,795.05 and 8,481,617.10

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Solution

The fourth proportional to 10,890,816.30, 16,300,795.05 and 8,481,617.10 is: 12,694,833.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,816.30 : 16,300,795.05 = 8,481,617.10 : x
  2. Step 2: Convert to fraction form
    10,890,816.30/16,300,795.05 = 8,481,617.10/x
  3. Step 3: Cross multiply
    10,890,816.30x = 16,300,795.05 × 8,481,617.10
  4. Step 4: Simplify right side
    10,890,816.30x = 138,257,102,039,675.36
  5. Step 5: Solve for x
    x = 138,257,102,039,675.36/10,890,816.30
  6. Step 6: Final answer
    x = 12,694,833.72

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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.