Home / 21,340,920.56-29,453,273.88-12,171,461.36

Finding the Fourth Proportional to 21,340,920.56, 29,453,273.88 and 12,171,461.36

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Solution

The fourth proportional to 21,340,920.56, 29,453,273.88 and 12,171,461.36 is: 16,798,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340,920.56 : 29,453,273.88 = 12,171,461.36 : x
  2. Step 2: Convert to fraction form
    21,340,920.56/29,453,273.88 = 12,171,461.36/x
  3. Step 3: Cross multiply
    21,340,920.56x = 29,453,273.88 × 12,171,461.36
  4. Step 4: Simplify right side
    21,340,920.56x = 358,489,384,955,917.25
  5. Step 5: Solve for x
    x = 358,489,384,955,917.25/21,340,920.56
  6. Step 6: Final answer
    x = 16,798,215.61

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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.