Home / 68,989,704.30-103,484,556.42-28,039,549.20

Finding the Fourth Proportional to 68,989,704.30, 103,484,556.42 and 28,039,549.20

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Solution

The fourth proportional to 68,989,704.30, 103,484,556.42 and 28,039,549.20 is: 42,059,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989,704.30 : 103,484,556.42 = 28,039,549.20 : x
  2. Step 2: Convert to fraction form
    68,989,704.30/103,484,556.42 = 28,039,549.20/x
  3. Step 3: Cross multiply
    68,989,704.30x = 103,484,556.42 × 28,039,549.20
  4. Step 4: Simplify right side
    68,989,704.30x = 2,901,660,311,178,766
  5. Step 5: Solve for x
    x = 2,901,660,311,178,766/68,989,704.30
  6. Step 6: Final answer
    x = 42,059,323.79

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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.