Home / 34,205,811-47,208,716.34-20,972,648.22

Finding the Fourth Proportional to 34,205,811, 47,208,716.34 and 20,972,648.22

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Solution

The fourth proportional to 34,205,811, 47,208,716.34 and 20,972,648.22 is: 28,945,134.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,205,811 : 47,208,716.34 = 20,972,648.22 : x
  2. Step 2: Convert to fraction form
    34,205,811/47,208,716.34 = 20,972,648.22/x
  3. Step 3: Cross multiply
    34,205,811x = 47,208,716.34 × 20,972,648.22
  4. Step 4: Simplify right side
    34,205,811x = 990,091,800,716,585.88
  5. Step 5: Solve for x
    x = 990,091,800,716,585.88/34,205,811
  6. Step 6: Final answer
    x = 28,945,134.52

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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.