Home / 28,656,647.64-39,540,919.77-16,899,604.38

Finding the Fourth Proportional to 28,656,647.64, 39,540,919.77 and 16,899,604.38

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Solution

The fourth proportional to 28,656,647.64, 39,540,919.77 and 16,899,604.38 is: 23,318,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,647.64 : 39,540,919.77 = 16,899,604.38 : x
  2. Step 2: Convert to fraction form
    28,656,647.64/39,540,919.77 = 16,899,604.38/x
  3. Step 3: Cross multiply
    28,656,647.64x = 39,540,919.77 × 16,899,604.38
  4. Step 4: Simplify right side
    28,656,647.64x = 668,225,900,934,320.62
  5. Step 5: Solve for x
    x = 668,225,900,934,320.62/28,656,647.64
  6. Step 6: Final answer
    x = 23,318,355.63

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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.