Home / 15,029,944.92-20,728,530.72-10,457,190.36

Finding the Fourth Proportional to 15,029,944.92, 20,728,530.72 and 10,457,190.36

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Solution

The fourth proportional to 15,029,944.92, 20,728,530.72 and 10,457,190.36 is: 14,422,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029,944.92 : 20,728,530.72 = 10,457,190.36 : x
  2. Step 2: Convert to fraction form
    15,029,944.92/20,728,530.72 = 10,457,190.36/x
  3. Step 3: Cross multiply
    15,029,944.92x = 20,728,530.72 × 10,457,190.36
  4. Step 4: Simplify right side
    15,029,944.92x = 216,762,191,622,147.84
  5. Step 5: Solve for x
    x = 216,762,191,622,147.84/15,029,944.92
  6. Step 6: Final answer
    x = 14,422,021.69

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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.