Home / 20,348,419.48-28,080,812.45-11,181,652.72

Finding the Fourth Proportional to 20,348,419.48, 28,080,812.45 and 11,181,652.72

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Solution

The fourth proportional to 20,348,419.48, 28,080,812.45 and 11,181,652.72 is: 15,430,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,419.48 : 28,080,812.45 = 11,181,652.72 : x
  2. Step 2: Convert to fraction form
    20,348,419.48/28,080,812.45 = 11,181,652.72/x
  3. Step 3: Cross multiply
    20,348,419.48x = 28,080,812.45 × 11,181,652.72
  4. Step 4: Simplify right side
    20,348,419.48x = 313,989,892,869,104.44
  5. Step 5: Solve for x
    x = 313,989,892,869,104.44/20,348,419.48
  6. Step 6: Final answer
    x = 15,430,677.22

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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.