Home / 20,926,267.65-31,395,404.79-8,789,489.28

Finding the Fourth Proportional to 20,926,267.65, 31,395,404.79 and 8,789,489.28

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Solution

The fourth proportional to 20,926,267.65, 31,395,404.79 and 8,789,489.28 is: 13,186,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926,267.65 : 31,395,404.79 = 8,789,489.28 : x
  2. Step 2: Convert to fraction form
    20,926,267.65/31,395,404.79 = 8,789,489.28/x
  3. Step 3: Cross multiply
    20,926,267.65x = 31,395,404.79 × 8,789,489.28
  4. Step 4: Simplify right side
    20,926,267.65x = 275,949,573,842,965.62
  5. Step 5: Solve for x
    x = 275,949,573,842,965.62/20,926,267.65
  6. Step 6: Final answer
    x = 13,186,755.44

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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.