Home / 13,347,713.22-18,421,217.33-8,121,092.55

Finding the Fourth Proportional to 13,347,713.22, 18,421,217.33 and 8,121,092.55

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Solution

The fourth proportional to 13,347,713.22, 18,421,217.33 and 8,121,092.55 is: 11,207,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347,713.22 : 18,421,217.33 = 8,121,092.55 : x
  2. Step 2: Convert to fraction form
    13,347,713.22/18,421,217.33 = 8,121,092.55/x
  3. Step 3: Cross multiply
    13,347,713.22x = 18,421,217.33 × 8,121,092.55
  4. Step 4: Simplify right side
    13,347,713.22x = 149,600,410,779,988.41
  5. Step 5: Solve for x
    x = 149,600,410,779,988.41/13,347,713.22
  6. Step 6: Final answer
    x = 11,207,943.14

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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.