Home / 28,508,621.80-39,347,613.54-16,912,621.80

Finding the Fourth Proportional to 28,508,621.80, 39,347,613.54 and 16,912,621.80

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Solution

The fourth proportional to 28,508,621.80, 39,347,613.54 and 16,912,621.80 is: 23,342,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508,621.80 : 39,347,613.54 = 16,912,621.80 : x
  2. Step 2: Convert to fraction form
    28,508,621.80/39,347,613.54 = 16,912,621.80/x
  3. Step 3: Cross multiply
    28,508,621.80x = 39,347,613.54 × 16,912,621.80
  4. Step 4: Simplify right side
    28,508,621.80x = 665,471,306,534,579.12
  5. Step 5: Solve for x
    x = 665,471,306,534,579.12/28,508,621.80
  6. Step 6: Final answer
    x = 23,342,808.75

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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.