Home / 28,059,116.58-38,686,558.91-21,451,893.12

Finding the Fourth Proportional to 28,059,116.58, 38,686,558.91 and 21,451,893.12

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Solution

The fourth proportional to 28,059,116.58, 38,686,558.91 and 21,451,893.12 is: 29,576,837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059,116.58 : 38,686,558.91 = 21,451,893.12 : x
  2. Step 2: Convert to fraction form
    28,059,116.58/38,686,558.91 = 21,451,893.12/x
  3. Step 3: Cross multiply
    28,059,116.58x = 38,686,558.91 × 21,451,893.12
  4. Step 4: Simplify right side
    28,059,116.58x = 829,899,926,810,644.25
  5. Step 5: Solve for x
    x = 829,899,926,810,644.25/28,059,116.58
  6. Step 6: Final answer
    x = 29,576,837.33

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Double scale
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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.