Home / 28,405,857.20-39,200,852.76-17,392,397.36

Finding the Fourth Proportional to 28,405,857.20, 39,200,852.76 and 17,392,397.36

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Solution

The fourth proportional to 28,405,857.20, 39,200,852.76 and 17,392,397.36 is: 24,001,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,857.20 : 39,200,852.76 = 17,392,397.36 : x
  2. Step 2: Convert to fraction form
    28,405,857.20/39,200,852.76 = 17,392,397.36/x
  3. Step 3: Cross multiply
    28,405,857.20x = 39,200,852.76 × 17,392,397.36
  4. Step 4: Simplify right side
    28,405,857.20x = 681,796,808,052,772.62
  5. Step 5: Solve for x
    x = 681,796,808,052,772.62/28,405,857.20
  6. Step 6: Final answer
    x = 24,001,979.71

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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.