Home / 68,519,544-102,806,216.46-30,154,145.88

Finding the Fourth Proportional to 68,519,544, 102,806,216.46 and 30,154,145.88

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Solution

The fourth proportional to 68,519,544, 102,806,216.46 and 30,154,145.88 is: 45,243,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519,544 : 102,806,216.46 = 30,154,145.88 : x
  2. Step 2: Convert to fraction form
    68,519,544/102,806,216.46 = 30,154,145.88/x
  3. Step 3: Cross multiply
    68,519,544x = 102,806,216.46 × 30,154,145.88
  4. Step 4: Simplify right side
    68,519,544x = 3,100,033,648,505,697
  5. Step 5: Solve for x
    x = 3,100,033,648,505,697/68,519,544
  6. Step 6: Final answer
    x = 45,243,057.20

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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.