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Finding the Fourth Proportional to 9,180,413,153.80, 12,877,067,216.60 and 9,180,413,153.80

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Solution

The fourth proportional to 9,180,413,153.80, 12,877,067,216.60 and 9,180,413,153.80 is: 12,877,067,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180,413,153.80 : 12,877,067,216.60 = 9,180,413,153.80 : x
  2. Step 2: Convert to fraction form
    9,180,413,153.80/12,877,067,216.60 = 9,180,413,153.80/x
  3. Step 3: Cross multiply
    9,180,413,153.80x = 12,877,067,216.60 × 9,180,413,153.80
  4. Step 4: Simplify right side
    9,180,413,153.80x = 118,216,797,257,641,394,176
  5. Step 5: Solve for x
    x = 118,216,797,257,641,394,176/9,180,413,153.80
  6. Step 6: Final answer
    x = 12,877,067,216.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.