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Finding the Fourth Proportional to 8,087,907,919.30, 12,131,861,878.95 and 8,087,907,919.30

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Solution

The fourth proportional to 8,087,907,919.30, 12,131,861,878.95 and 8,087,907,919.30 is: 12,131,861,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087,907,919.30 : 12,131,861,878.95 = 8,087,907,919.30 : x
  2. Step 2: Convert to fraction form
    8,087,907,919.30/12,131,861,878.95 = 8,087,907,919.30/x
  3. Step 3: Cross multiply
    8,087,907,919.30x = 12,131,861,878.95 × 8,087,907,919.30
  4. Step 4: Simplify right side
    8,087,907,919.30x = 98,121,381,766,613,483,520
  5. Step 5: Solve for x
    x = 98,121,381,766,613,483,520/8,087,907,919.30
  6. Step 6: Final answer
    x = 12,131,861,878.95

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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.