Home / 21,265,498.48-31,896,705.36-8,309,213.68

Finding the Fourth Proportional to 21,265,498.48, 31,896,705.36 and 8,309,213.68

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Solution

The fourth proportional to 21,265,498.48, 31,896,705.36 and 8,309,213.68 is: 12,463,217.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,498.48 : 31,896,705.36 = 8,309,213.68 : x
  2. Step 2: Convert to fraction form
    21,265,498.48/31,896,705.36 = 8,309,213.68/x
  3. Step 3: Cross multiply
    21,265,498.48x = 31,896,705.36 × 8,309,213.68
  4. Step 4: Simplify right side
    21,265,498.48x = 265,036,540,524,241.31
  5. Step 5: Solve for x
    x = 265,036,540,524,241.31/21,265,498.48
  6. Step 6: Final answer
    x = 12,463,217.86

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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.