Home / 38,632,619.72-53,313,439.52-21,228,969.44

Finding the Fourth Proportional to 38,632,619.72, 53,313,439.52 and 21,228,969.44

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Solution

The fourth proportional to 38,632,619.72, 53,313,439.52 and 21,228,969.44 is: 29,296,210.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632,619.72 : 53,313,439.52 = 21,228,969.44 : x
  2. Step 2: Convert to fraction form
    38,632,619.72/53,313,439.52 = 21,228,969.44/x
  3. Step 3: Cross multiply
    38,632,619.72x = 53,313,439.52 × 21,228,969.44
  4. Step 4: Simplify right side
    38,632,619.72x = 1,131,789,378,311,368.50
  5. Step 5: Solve for x
    x = 1,131,789,378,311,368.50/38,632,619.72
  6. Step 6: Final answer
    x = 29,296,210.99

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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.