Home / 21,618,200-29,833,495.08-11,829,501.74

Finding the Fourth Proportional to 21,618,200, 29,833,495.08 and 11,829,501.74

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Solution

The fourth proportional to 21,618,200, 29,833,495.08 and 11,829,501.74 is: 16,324,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618,200 : 29,833,495.08 = 11,829,501.74 : x
  2. Step 2: Convert to fraction form
    21,618,200/29,833,495.08 = 11,829,501.74/x
  3. Step 3: Cross multiply
    21,618,200x = 29,833,495.08 × 11,829,501.74
  4. Step 4: Simplify right side
    21,618,200x = 352,915,381,959,141.44
  5. Step 5: Solve for x
    x = 352,915,381,959,141.44/21,618,200
  6. Step 6: Final answer
    x = 16,324,919.83

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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.