Home / 10,987,421.40-16,481,132.10-7,161,046.20

Finding the Fourth Proportional to 10,987,421.40, 16,481,132.10 and 7,161,046.20

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Solution

The fourth proportional to 10,987,421.40, 16,481,132.10 and 7,161,046.20 is: 10,741,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,421.40 : 16,481,132.10 = 7,161,046.20 : x
  2. Step 2: Convert to fraction form
    10,987,421.40/16,481,132.10 = 7,161,046.20/x
  3. Step 3: Cross multiply
    10,987,421.40x = 16,481,132.10 × 7,161,046.20
  4. Step 4: Simplify right side
    10,987,421.40x = 118,022,148,396,403.02
  5. Step 5: Solve for x
    x = 118,022,148,396,403.02/10,987,421.40
  6. Step 6: Final answer
    x = 10,741,569.30

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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.