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Finding the Fourth Proportional to 18,880,142,466.40, 28,265,794,141.20 and 18,880,142,466.40

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Solution

The fourth proportional to 18,880,142,466.40, 28,265,794,141.20 and 18,880,142,466.40 is: 28,265,794,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880,142,466.40 : 28,265,794,141.20 = 18,880,142,466.40 : x
  2. Step 2: Convert to fraction form
    18,880,142,466.40/28,265,794,141.20 = 18,880,142,466.40/x
  3. Step 3: Cross multiply
    18,880,142,466.40x = 28,265,794,141.20 × 18,880,142,466.40
  4. Step 4: Simplify right side
    18,880,142,466.40x = 533,662,220,311,790,485,504
  5. Step 5: Solve for x
    x = 533,662,220,311,790,485,504/18,880,142,466.40
  6. Step 6: Final answer
    x = 28,265,794,141.20

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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.