Home / 112,721,939.82-155,556,874.44-63,162,420.30

Finding the Fourth Proportional to 112,721,939.82, 155,556,874.44 and 63,162,420.30

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Solution

The fourth proportional to 112,721,939.82, 155,556,874.44 and 63,162,420.30 is: 87,164,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,721,939.82 : 155,556,874.44 = 63,162,420.30 : x
  2. Step 2: Convert to fraction form
    112,721,939.82/155,556,874.44 = 63,162,420.30/x
  3. Step 3: Cross multiply
    112,721,939.82x = 155,556,874.44 × 63,162,420.30
  4. Step 4: Simplify right side
    112,721,939.82x = 9,825,348,683,933,606
  5. Step 5: Solve for x
    x = 9,825,348,683,933,606/112,721,939.82
  6. Step 6: Final answer
    x = 87,164,474.81

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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.