Home / 21,477,105.96-29,638,411.06-11,819,313.96

Finding the Fourth Proportional to 21,477,105.96, 29,638,411.06 and 11,819,313.96

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Solution

The fourth proportional to 21,477,105.96, 29,638,411.06 and 11,819,313.96 is: 16,310,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477,105.96 : 29,638,411.06 = 11,819,313.96 : x
  2. Step 2: Convert to fraction form
    21,477,105.96/29,638,411.06 = 11,819,313.96/x
  3. Step 3: Cross multiply
    21,477,105.96x = 29,638,411.06 × 11,819,313.96
  4. Step 4: Simplify right side
    21,477,105.96x = 350,305,685,593,676.44
  5. Step 5: Solve for x
    x = 350,305,685,593,676.44/21,477,105.96
  6. Step 6: Final answer
    x = 16,310,655.93

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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.