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Finding the Fourth Proportional to 12,858,316,395.45, 19,287,474,593.18 and 12,858,316,395.45

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Solution

The fourth proportional to 12,858,316,395.45, 19,287,474,593.18 and 12,858,316,395.45 is: 19,287,474,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858,316,395.45 : 19,287,474,593.18 = 12,858,316,395.45 : x
  2. Step 2: Convert to fraction form
    12,858,316,395.45/19,287,474,593.18 = 12,858,316,395.45/x
  3. Step 3: Cross multiply
    12,858,316,395.45x = 19,287,474,593.18 × 12,858,316,395.45
  4. Step 4: Simplify right side
    12,858,316,395.45x = 248,004,450,788,247,437,312
  5. Step 5: Solve for x
    x = 248,004,450,788,247,437,312/12,858,316,395.45
  6. Step 6: Final answer
    x = 19,287,474,593.18

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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.