Home / 28,733,620.80-39,653,236.74-15,681,717.78

Finding the Fourth Proportional to 28,733,620.80, 39,653,236.74 and 15,681,717.78

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Solution

The fourth proportional to 28,733,620.80, 39,653,236.74 and 15,681,717.78 is: 21,641,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,733,620.80 : 39,653,236.74 = 15,681,717.78 : x
  2. Step 2: Convert to fraction form
    28,733,620.80/39,653,236.74 = 15,681,717.78/x
  3. Step 3: Cross multiply
    28,733,620.80x = 39,653,236.74 × 15,681,717.78
  4. Step 4: Simplify right side
    28,733,620.80x = 621,830,867,620,207.25
  5. Step 5: Solve for x
    x = 621,830,867,620,207.25/28,733,620.80
  6. Step 6: Final answer
    x = 21,641,229.00

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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.