Home / 511,079,518.18-705,288,341.06-285,018,747.36

Finding the Fourth Proportional to 511,079,518.18, 705,288,341.06 and 285,018,747.36

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Solution

The fourth proportional to 511,079,518.18, 705,288,341.06 and 285,018,747.36 is: 393,325,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,079,518.18 : 705,288,341.06 = 285,018,747.36 : x
  2. Step 2: Convert to fraction form
    511,079,518.18/705,288,341.06 = 285,018,747.36/x
  3. Step 3: Cross multiply
    511,079,518.18x = 705,288,341.06 × 285,018,747.36
  4. Step 4: Simplify right side
    511,079,518.18x = 201,020,399,491,582,112
  5. Step 5: Solve for x
    x = 201,020,399,491,582,112/511,079,518.18
  6. Step 6: Final answer
    x = 393,325,093.93

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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.