Home / 20,845,012-28,766,119.30-11,553,181.96

Finding the Fourth Proportional to 20,845,012, 28,766,119.30 and 11,553,181.96

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Solution

The fourth proportional to 20,845,012, 28,766,119.30 and 11,553,181.96 is: 15,943,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,012 : 28,766,119.30 = 11,553,181.96 : x
  2. Step 2: Convert to fraction form
    20,845,012/28,766,119.30 = 11,553,181.96/x
  3. Step 3: Cross multiply
    20,845,012x = 28,766,119.30 × 11,553,181.96
  4. Step 4: Simplify right side
    20,845,012x = 332,340,210,555,967.88
  5. Step 5: Solve for x
    x = 332,340,210,555,967.88/20,845,012
  6. Step 6: Final answer
    x = 15,943,392.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.