Home / 200,022,003.20-299,561,145.60-123,580,812.80

Finding the Fourth Proportional to 200,022,003.20, 299,561,145.60 and 123,580,812.80

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Solution

The fourth proportional to 200,022,003.20, 299,561,145.60 and 123,580,812.80 is: 185,079,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,022,003.20 : 299,561,145.60 = 123,580,812.80 : x
  2. Step 2: Convert to fraction form
    200,022,003.20/299,561,145.60 = 123,580,812.80/x
  3. Step 3: Cross multiply
    200,022,003.20x = 299,561,145.60 × 123,580,812.80
  4. Step 4: Simplify right side
    200,022,003.20x = 37,020,009,856,547,144
  5. Step 5: Solve for x
    x = 37,020,009,856,547,144/200,022,003.20
  6. Step 6: Final answer
    x = 185,079,687.56

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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.