Home / 194,039,190.40-290,633,632.80-172,498,115.20

Finding the Fourth Proportional to 194,039,190.40, 290,633,632.80 and 172,498,115.20

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Solution

The fourth proportional to 194,039,190.40, 290,633,632.80 and 172,498,115.20 is: 258,369,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,039,190.40 : 290,633,632.80 = 172,498,115.20 : x
  2. Step 2: Convert to fraction form
    194,039,190.40/290,633,632.80 = 172,498,115.20/x
  3. Step 3: Cross multiply
    194,039,190.40x = 290,633,632.80 × 172,498,115.20
  4. Step 4: Simplify right side
    194,039,190.40x = 50,133,753,871,728,896
  5. Step 5: Solve for x
    x = 50,133,753,871,728,896/194,039,190.40
  6. Step 6: Final answer
    x = 258,369,217.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.