Home / 15,348,394.25-21,180,654.15-8,472,728.69

Finding the Fourth Proportional to 15,348,394.25, 21,180,654.15 and 8,472,728.69

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Solution

The fourth proportional to 15,348,394.25, 21,180,654.15 and 8,472,728.69 is: 11,692,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,394.25 : 21,180,654.15 = 8,472,728.69 : x
  2. Step 2: Convert to fraction form
    15,348,394.25/21,180,654.15 = 8,472,728.69/x
  3. Step 3: Cross multiply
    15,348,394.25x = 21,180,654.15 × 8,472,728.69
  4. Step 4: Simplify right side
    15,348,394.25x = 179,457,936,089,672.53
  5. Step 5: Solve for x
    x = 179,457,936,089,672.53/15,348,394.25
  6. Step 6: Final answer
    x = 11,692,293.88

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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.