Home / 659,687,151.78-988,669,924.47-368,542,514.34

Finding the Fourth Proportional to 659,687,151.78, 988,669,924.47 and 368,542,514.34

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Solution

The fourth proportional to 659,687,151.78, 988,669,924.47 and 368,542,514.34 is: 552,332,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,687,151.78 : 988,669,924.47 = 368,542,514.34 : x
  2. Step 2: Convert to fraction form
    659,687,151.78/988,669,924.47 = 368,542,514.34/x
  3. Step 3: Cross multiply
    659,687,151.78x = 988,669,924.47 × 368,542,514.34
  4. Step 4: Simplify right side
    659,687,151.78x = 364,366,899,816,511,680
  5. Step 5: Solve for x
    x = 364,366,899,816,511,680/659,687,151.78
  6. Step 6: Final answer
    x = 552,332,872.99

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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.