Home / 511,079,517.18-705,288,339.68-285,018,746.36

Finding the Fourth Proportional to 511,079,517.18, 705,288,339.68 and 285,018,746.36

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Solution

The fourth proportional to 511,079,517.18, 705,288,339.68 and 285,018,746.36 is: 393,325,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,079,517.18 : 705,288,339.68 = 285,018,746.36 : x
  2. Step 2: Convert to fraction form
    511,079,517.18/705,288,339.68 = 285,018,746.36/x
  3. Step 3: Cross multiply
    511,079,517.18x = 705,288,339.68 × 285,018,746.36
  4. Step 4: Simplify right side
    511,079,517.18x = 201,020,398,392,967,904
  5. Step 5: Solve for x
    x = 201,020,398,392,967,904/511,079,517.18
  6. Step 6: Final answer
    x = 393,325,092.55

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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.