Home / 19,331,561.54-26,678,512.80-11,991,759.90

Finding the Fourth Proportional to 19,331,561.54, 26,678,512.80 and 11,991,759.90

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Solution

The fourth proportional to 19,331,561.54, 26,678,512.80 and 11,991,759.90 is: 16,549,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331,561.54 : 26,678,512.80 = 11,991,759.90 : x
  2. Step 2: Convert to fraction form
    19,331,561.54/26,678,512.80 = 11,991,759.90/x
  3. Step 3: Cross multiply
    19,331,561.54x = 26,678,512.80 × 11,991,759.90
  4. Step 4: Simplify right side
    19,331,561.54x = 319,922,319,986,676.75
  5. Step 5: Solve for x
    x = 319,922,319,986,676.75/19,331,561.54
  6. Step 6: Final answer
    x = 16,549,222.86

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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.