Home / 38,238,889.91-52,769,673.98-20,835,236.67

Finding the Fourth Proportional to 38,238,889.91, 52,769,673.98 and 20,835,236.67

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Solution

The fourth proportional to 38,238,889.91, 52,769,673.98 and 20,835,236.67 is: 28,752,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,889.91 : 52,769,673.98 = 20,835,236.67 : x
  2. Step 2: Convert to fraction form
    38,238,889.91/52,769,673.98 = 20,835,236.67/x
  3. Step 3: Cross multiply
    38,238,889.91x = 52,769,673.98 × 20,835,236.67
  4. Step 4: Simplify right side
    38,238,889.91x = 1,099,468,646,355,108.38
  5. Step 5: Solve for x
    x = 1,099,468,646,355,108.38/38,238,889.91
  6. Step 6: Final answer
    x = 28,752,629.82

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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.