Home / 30,906,786.24-42,651,529.68-19,311,074.16

Finding the Fourth Proportional to 30,906,786.24, 42,651,529.68 and 19,311,074.16

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Solution

The fourth proportional to 30,906,786.24, 42,651,529.68 and 19,311,074.16 is: 26,649,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906,786.24 : 42,651,529.68 = 19,311,074.16 : x
  2. Step 2: Convert to fraction form
    30,906,786.24/42,651,529.68 = 19,311,074.16/x
  3. Step 3: Cross multiply
    30,906,786.24x = 42,651,529.68 × 19,311,074.16
  4. Step 4: Simplify right side
    30,906,786.24x = 823,646,852,687,921.12
  5. Step 5: Solve for x
    x = 823,646,852,687,921.12/30,906,786.24
  6. Step 6: Final answer
    x = 26,649,385.23

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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.