Home / 68,471,215.45-102,706,816.93-30,132,729.54

Finding the Fourth Proportional to 68,471,215.45, 102,706,816.93 and 30,132,729.54

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Solution

The fourth proportional to 68,471,215.45, 102,706,816.93 and 30,132,729.54 is: 45,199,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,471,215.45 : 102,706,816.93 = 30,132,729.54 : x
  2. Step 2: Convert to fraction form
    68,471,215.45/102,706,816.93 = 30,132,729.54/x
  3. Step 3: Cross multiply
    68,471,215.45x = 102,706,816.93 × 30,132,729.54
  4. Step 4: Simplify right side
    68,471,215.45x = 3,094,836,736,390,651
  5. Step 5: Solve for x
    x = 3,094,836,736,390,651/68,471,215.45
  6. Step 6: Final answer
    x = 45,199,091.56

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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.