Home / 290,328,310.80-435,492,466.20-198,360,003.60

Finding the Fourth Proportional to 290,328,310.80, 435,492,466.20 and 198,360,003.60

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Solution

The fourth proportional to 290,328,310.80, 435,492,466.20 and 198,360,003.60 is: 297,540,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,328,310.80 : 435,492,466.20 = 198,360,003.60 : x
  2. Step 2: Convert to fraction form
    290,328,310.80/435,492,466.20 = 198,360,003.60/x
  3. Step 3: Cross multiply
    290,328,310.80x = 435,492,466.20 × 198,360,003.60
  4. Step 4: Simplify right side
    290,328,310.80x = 86,384,287,163,204,880
  5. Step 5: Solve for x
    x = 86,384,287,163,204,880/290,328,310.80
  6. Step 6: Final answer
    x = 297,540,005.40

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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.