Home / 15,190,071.99-20,962,324.75-8,220,755.72

Finding the Fourth Proportional to 15,190,071.99, 20,962,324.75 and 8,220,755.72

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Solution

The fourth proportional to 15,190,071.99, 20,962,324.75 and 8,220,755.72 is: 11,344,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190,071.99 : 20,962,324.75 = 8,220,755.72 : x
  2. Step 2: Convert to fraction form
    15,190,071.99/20,962,324.75 = 8,220,755.72/x
  3. Step 3: Cross multiply
    15,190,071.99x = 20,962,324.75 × 8,220,755.72
  4. Step 4: Simplify right side
    15,190,071.99x = 172,326,151,124,914
  5. Step 5: Solve for x
    x = 172,326,151,124,914/15,190,071.99
  6. Step 6: Final answer
    x = 11,344,656.64

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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.