Home / 551,622,700.80-761,244,521.40-304,112,912.40

Finding the Fourth Proportional to 551,622,700.80, 761,244,521.40 and 304,112,912.40

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Solution

The fourth proportional to 551,622,700.80, 761,244,521.40 and 304,112,912.40 is: 419,678,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,622,700.80 : 761,244,521.40 = 304,112,912.40 : x
  2. Step 2: Convert to fraction form
    551,622,700.80/761,244,521.40 = 304,112,912.40/x
  3. Step 3: Cross multiply
    551,622,700.80x = 761,244,521.40 × 304,112,912.40
  4. Step 4: Simplify right side
    551,622,700.80x = 231,504,288,451,498,112
  5. Step 5: Solve for x
    x = 231,504,288,451,498,112/551,622,700.80
  6. Step 6: Final answer
    x = 419,678,682.76

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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.