Home / 28,991,142.72-40,004,526.24-17,389,177.92

Finding the Fourth Proportional to 28,991,142.72, 40,004,526.24 and 17,389,177.92

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Solution

The fourth proportional to 28,991,142.72, 40,004,526.24 and 17,389,177.92 is: 23,995,115.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991,142.72 : 40,004,526.24 = 17,389,177.92 : x
  2. Step 2: Convert to fraction form
    28,991,142.72/40,004,526.24 = 17,389,177.92/x
  3. Step 3: Cross multiply
    28,991,142.72x = 40,004,526.24 × 17,389,177.92
  4. Step 4: Simplify right side
    28,991,142.72x = 695,645,824,392,668.75
  5. Step 5: Solve for x
    x = 695,645,824,392,668.75/28,991,142.72
  6. Step 6: Final answer
    x = 23,995,115.72

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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.