Home / 28,763,942.86-39,694,196.77-15,711,201.91

Finding the Fourth Proportional to 28,763,942.86, 39,694,196.77 and 15,711,201.91

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Solution

The fourth proportional to 28,763,942.86, 39,694,196.77 and 15,711,201.91 is: 21,681,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763,942.86 : 39,694,196.77 = 15,711,201.91 : x
  2. Step 2: Convert to fraction form
    28,763,942.86/39,694,196.77 = 15,711,201.91/x
  3. Step 3: Cross multiply
    28,763,942.86x = 39,694,196.77 × 15,711,201.91
  4. Step 4: Simplify right side
    28,763,942.86x = 623,643,540,108,739.88
  5. Step 5: Solve for x
    x = 623,643,540,108,739.88/28,763,942.86
  6. Step 6: Final answer
    x = 21,681,434.40

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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.