Home / 15,190,542.72-20,962,955.60-8,315,064

Finding the Fourth Proportional to 15,190,542.72, 20,962,955.60 and 8,315,064

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Solution

The fourth proportional to 15,190,542.72, 20,962,955.60 and 8,315,064 is: 11,474,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190,542.72 : 20,962,955.60 = 8,315,064 : x
  2. Step 2: Convert to fraction form
    15,190,542.72/20,962,955.60 = 8,315,064/x
  3. Step 3: Cross multiply
    15,190,542.72x = 20,962,955.60 × 8,315,064
  4. Step 4: Simplify right side
    15,190,542.72x = 174,308,317,443,158.41
  5. Step 5: Solve for x
    x = 174,308,317,443,158.41/15,190,542.72
  6. Step 6: Final answer
    x = 11,474,791.96

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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.