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Finding the Fourth Proportional to 8,087,907,430.80, 12,131,861,146.20 and 8,087,907,430.80

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Solution

The fourth proportional to 8,087,907,430.80, 12,131,861,146.20 and 8,087,907,430.80 is: 12,131,861,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087,907,430.80 : 12,131,861,146.20 = 8,087,907,430.80 : x
  2. Step 2: Convert to fraction form
    8,087,907,430.80/12,131,861,146.20 = 8,087,907,430.80/x
  3. Step 3: Cross multiply
    8,087,907,430.80x = 12,131,861,146.20 × 8,087,907,430.80
  4. Step 4: Simplify right side
    8,087,907,430.80x = 98,121,369,913,784,795,136
  5. Step 5: Solve for x
    x = 98,121,369,913,784,795,136/8,087,907,430.80
  6. Step 6: Final answer
    x = 12,131,861,146.20

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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.