Home / 66,958,915.40-100,469,262.72-30,578,458.40

Finding the Fourth Proportional to 66,958,915.40, 100,469,262.72 and 30,578,458.40

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Solution

The fourth proportional to 66,958,915.40, 100,469,262.72 and 30,578,458.40 is: 45,881,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958,915.40 : 100,469,262.72 = 30,578,458.40 : x
  2. Step 2: Convert to fraction form
    66,958,915.40/100,469,262.72 = 30,578,458.40/x
  3. Step 3: Cross multiply
    66,958,915.40x = 100,469,262.72 × 30,578,458.40
  4. Step 4: Simplify right side
    66,958,915.40x = 3,072,195,170,562,190.50
  5. Step 5: Solve for x
    x = 3,072,195,170,562,190.50/66,958,915.40
  6. Step 6: Final answer
    x = 45,881,794.12

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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.