Home / 20,859,185.14-28,785,739.53-11,567,409.46

Finding the Fourth Proportional to 20,859,185.14, 28,785,739.53 and 11,567,409.46

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Solution

The fourth proportional to 20,859,185.14, 28,785,739.53 and 11,567,409.46 is: 15,963,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,185.14 : 28,785,739.53 = 11,567,409.46 : x
  2. Step 2: Convert to fraction form
    20,859,185.14/28,785,739.53 = 11,567,409.46/x
  3. Step 3: Cross multiply
    20,859,185.14x = 28,785,739.53 × 11,567,409.46
  4. Step 4: Simplify right side
    20,859,185.14x = 332,976,435,752,418
  5. Step 5: Solve for x
    x = 332,976,435,752,418/20,859,185.14
  6. Step 6: Final answer
    x = 15,963,060.57

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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.