Home / 3,175,532.78-4,382,149.88-1,868,861.67

Finding the Fourth Proportional to 3,175,532.78, 4,382,149.88 and 1,868,861.67

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Solution

The fourth proportional to 3,175,532.78, 4,382,149.88 and 1,868,861.67 is: 2,578,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175,532.78 : 4,382,149.88 = 1,868,861.67 : x
  2. Step 2: Convert to fraction form
    3,175,532.78/4,382,149.88 = 1,868,861.67/x
  3. Step 3: Cross multiply
    3,175,532.78x = 4,382,149.88 × 1,868,861.67
  4. Step 4: Simplify right side
    3,175,532.78x = 8,189,631,931,166.19
  5. Step 5: Solve for x
    x = 8,189,631,931,166.19/3,175,532.78
  6. Step 6: Final answer
    x = 2,578,978.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.