Home / 13,360,370.70-18,431,830.88-8,129,185.32

Finding the Fourth Proportional to 13,360,370.70, 18,431,830.88 and 8,129,185.32

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Solution

The fourth proportional to 13,360,370.70, 18,431,830.88 and 8,129,185.32 is: 11,214,940.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360,370.70 : 18,431,830.88 = 8,129,185.32 : x
  2. Step 2: Convert to fraction form
    13,360,370.70/18,431,830.88 = 8,129,185.32/x
  3. Step 3: Cross multiply
    13,360,370.70x = 18,431,830.88 × 8,129,185.32
  4. Step 4: Simplify right side
    13,360,370.70x = 149,835,769,010,418.69
  5. Step 5: Solve for x
    x = 149,835,769,010,418.69/13,360,370.70
  6. Step 6: Final answer
    x = 11,214,940.99

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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.