Home / 28,405,857.32-39,200,852.96-17,392,397.48

Finding the Fourth Proportional to 28,405,857.32, 39,200,852.96 and 17,392,397.48

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Solution

The fourth proportional to 28,405,857.32, 39,200,852.96 and 17,392,397.48 is: 24,001,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,857.32 : 39,200,852.96 = 17,392,397.48 : x
  2. Step 2: Convert to fraction form
    28,405,857.32/39,200,852.96 = 17,392,397.48/x
  3. Step 3: Cross multiply
    28,405,857.32x = 39,200,852.96 × 17,392,397.48
  4. Step 4: Simplify right side
    28,405,857.32x = 681,796,816,235,354.62
  5. Step 5: Solve for x
    x = 681,796,816,235,354.62/28,405,857.32
  6. Step 6: Final answer
    x = 24,001,979.89

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1.5x scale

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.