Home / 68,519,541-102,806,211.96-30,154,142.88

Finding the Fourth Proportional to 68,519,541, 102,806,211.96 and 30,154,142.88

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Solution

The fourth proportional to 68,519,541, 102,806,211.96 and 30,154,142.88 is: 45,243,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519,541 : 102,806,211.96 = 30,154,142.88 : x
  2. Step 2: Convert to fraction form
    68,519,541/102,806,211.96 = 30,154,142.88/x
  3. Step 3: Cross multiply
    68,519,541x = 102,806,211.96 × 30,154,142.88
  4. Step 4: Simplify right side
    68,519,541x = 3,100,033,204,393,404.50
  5. Step 5: Solve for x
    x = 3,100,033,204,393,404.50/68,519,541
  6. Step 6: Final answer
    x = 45,243,052.70

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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.