Home / 21,690,090,865.92-29,930,682,714.24-12,172,804,518.24

Finding the Fourth Proportional to 21,690,090,865.92, 29,930,682,714.24 and 12,172,804,518.24

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Solution

The fourth proportional to 21,690,090,865.92, 29,930,682,714.24 and 12,172,804,518.24 is: 16,797,548,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690,090,865.92 : 29,930,682,714.24 = 12,172,804,518.24 : x
  2. Step 2: Convert to fraction form
    21,690,090,865.92/29,930,682,714.24 = 12,172,804,518.24/x
  3. Step 3: Cross multiply
    21,690,090,865.92x = 29,930,682,714.24 × 12,172,804,518.24
  4. Step 4: Simplify right side
    21,690,090,865.92x = 364,340,349,777,908,531,200
  5. Step 5: Solve for x
    x = 364,340,349,777,908,531,200/21,690,090,865.92
  6. Step 6: Final answer
    x = 16,797,548,338.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.