Home / 30,767,278.37-42,471,917.57-19,170,571.41

Finding the Fourth Proportional to 30,767,278.37, 42,471,917.57 and 19,170,571.41

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Solution

The fourth proportional to 30,767,278.37, 42,471,917.57 and 19,170,571.41 is: 26,463,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767,278.37 : 42,471,917.57 = 19,170,571.41 : x
  2. Step 2: Convert to fraction form
    30,767,278.37/42,471,917.57 = 19,170,571.41/x
  3. Step 3: Cross multiply
    30,767,278.37x = 42,471,917.57 × 19,170,571.41
  4. Step 4: Simplify right side
    30,767,278.37x = 814,210,928,743,245.12
  5. Step 5: Solve for x
    x = 814,210,928,743,245.12/30,767,278.37
  6. Step 6: Final answer
    x = 26,463,534.38

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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.