Home / 20,348,436.90-28,080,836.42-11,181,670.14

Finding the Fourth Proportional to 20,348,436.90, 28,080,836.42 and 11,181,670.14

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Solution

The fourth proportional to 20,348,436.90, 28,080,836.42 and 11,181,670.14 is: 15,430,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,436.90 : 28,080,836.42 = 11,181,670.14 : x
  2. Step 2: Convert to fraction form
    20,348,436.90/28,080,836.42 = 11,181,670.14/x
  3. Step 3: Cross multiply
    20,348,436.90x = 28,080,836.42 × 11,181,670.14
  4. Step 4: Simplify right side
    20,348,436.90x = 313,990,650,103,738.56
  5. Step 5: Solve for x
    x = 313,990,650,103,738.56/20,348,436.90
  6. Step 6: Final answer
    x = 15,430,701.22

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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.