Home / 13,321,638.17-18,384,306.45-8,164,003.67

Finding the Fourth Proportional to 13,321,638.17, 18,384,306.45 and 8,164,003.67

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Solution

The fourth proportional to 13,321,638.17, 18,384,306.45 and 8,164,003.67 is: 11,266,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,638.17 : 18,384,306.45 = 8,164,003.67 : x
  2. Step 2: Convert to fraction form
    13,321,638.17/18,384,306.45 = 8,164,003.67/x
  3. Step 3: Cross multiply
    13,321,638.17x = 18,384,306.45 × 8,164,003.67
  4. Step 4: Simplify right side
    13,321,638.17x = 150,089,545,328,204.66
  5. Step 5: Solve for x
    x = 150,089,545,328,204.66/13,321,638.17
  6. Step 6: Final answer
    x = 11,266,598.25

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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.