Home / 21,399,059.88-29,530,758.70-11,609,503.56

Finding the Fourth Proportional to 21,399,059.88, 29,530,758.70 and 11,609,503.56

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Solution

The fourth proportional to 21,399,059.88, 29,530,758.70 and 11,609,503.56 is: 16,021,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,059.88 : 29,530,758.70 = 11,609,503.56 : x
  2. Step 2: Convert to fraction form
    21,399,059.88/29,530,758.70 = 11,609,503.56/x
  3. Step 3: Cross multiply
    21,399,059.88x = 29,530,758.70 × 11,609,503.56
  4. Step 4: Simplify right side
    21,399,059.88x = 342,837,448,257,151
  5. Step 5: Solve for x
    x = 342,837,448,257,151/21,399,059.88
  6. Step 6: Final answer
    x = 16,021,145.33

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1.5x scale

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.