Home / 511,079,519.93-705,288,343.47-285,018,749.11

Finding the Fourth Proportional to 511,079,519.93, 705,288,343.47 and 285,018,749.11

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Solution

The fourth proportional to 511,079,519.93, 705,288,343.47 and 285,018,749.11 is: 393,325,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,079,519.93 : 705,288,343.47 = 285,018,749.11 : x
  2. Step 2: Convert to fraction form
    511,079,519.93/705,288,343.47 = 285,018,749.11/x
  3. Step 3: Cross multiply
    511,079,519.93x = 705,288,343.47 × 285,018,749.11
  4. Step 4: Simplify right side
    511,079,519.93x = 201,020,401,414,157,024
  5. Step 5: Solve for x
    x = 201,020,401,414,157,024/511,079,519.93
  6. Step 6: Final answer
    x = 393,325,096.34

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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.