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Finding the Fourth Proportional to 12,916,454,830.80, 19,374,682,246.20 and 12,916,454,830.80

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Solution

The fourth proportional to 12,916,454,830.80, 19,374,682,246.20 and 12,916,454,830.80 is: 19,374,682,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916,454,830.80 : 19,374,682,246.20 = 12,916,454,830.80 : x
  2. Step 2: Convert to fraction form
    12,916,454,830.80/19,374,682,246.20 = 12,916,454,830.80/x
  3. Step 3: Cross multiply
    12,916,454,830.80x = 19,374,682,246.20 × 12,916,454,830.80
  4. Step 4: Simplify right side
    12,916,454,830.80x = 250,252,208,094,144,987,136
  5. Step 5: Solve for x
    x = 250,252,208,094,144,987,136/12,916,454,830.80
  6. Step 6: Final answer
    x = 19,374,682,246.20

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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.