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Finding the Fourth Proportional to 5,229,173,880.90, 7,843,760,821.35 and 5,229,173,880.90

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Solution

The fourth proportional to 5,229,173,880.90, 7,843,760,821.35 and 5,229,173,880.90 is: 7,843,760,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229,173,880.90 : 7,843,760,821.35 = 5,229,173,880.90 : x
  2. Step 2: Convert to fraction form
    5,229,173,880.90/7,843,760,821.35 = 5,229,173,880.90/x
  3. Step 3: Cross multiply
    5,229,173,880.90x = 7,843,760,821.35 × 5,229,173,880.90
  4. Step 4: Simplify right side
    5,229,173,880.90x = 41,016,389,215,030,149,120
  5. Step 5: Solve for x
    x = 41,016,389,215,030,149,120/5,229,173,880.90
  6. Step 6: Final answer
    x = 7,843,760,821.35

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1.5x scale

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.