Home / 28,711,399.35-39,614,919.12-16,320,520.29

Finding the Fourth Proportional to 28,711,399.35, 39,614,919.12 and 16,320,520.29

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Solution

The fourth proportional to 28,711,399.35, 39,614,919.12 and 16,320,520.29 is: 22,518,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711,399.35 : 39,614,919.12 = 16,320,520.29 : x
  2. Step 2: Convert to fraction form
    28,711,399.35/39,614,919.12 = 16,320,520.29/x
  3. Step 3: Cross multiply
    28,711,399.35x = 39,614,919.12 × 16,320,520.29
  4. Step 4: Simplify right side
    28,711,399.35x = 646,536,091,284,668.88
  5. Step 5: Solve for x
    x = 646,536,091,284,668.88/28,711,399.35
  6. Step 6: Final answer
    x = 22,518,445.84

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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.