Home / 21,749,120.85-30,014,557.22-11,960,309.87

Finding the Fourth Proportional to 21,749,120.85, 30,014,557.22 and 11,960,309.87

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Solution

The fourth proportional to 21,749,120.85, 30,014,557.22 and 11,960,309.87 is: 16,505,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749,120.85 : 30,014,557.22 = 11,960,309.87 : x
  2. Step 2: Convert to fraction form
    21,749,120.85/30,014,557.22 = 11,960,309.87/x
  3. Step 3: Cross multiply
    21,749,120.85x = 30,014,557.22 × 11,960,309.87
  4. Step 4: Simplify right side
    21,749,120.85x = 358,983,404,962,045.75
  5. Step 5: Solve for x
    x = 358,983,404,962,045.75/21,749,120.85
  6. Step 6: Final answer
    x = 16,505,651.31

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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.