Home / 38,143,471.92-52,638,649.20-20,739,934.68

Finding the Fourth Proportional to 38,143,471.92, 52,638,649.20 and 20,739,934.68

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Solution

The fourth proportional to 38,143,471.92, 52,638,649.20 and 20,739,934.68 is: 28,621,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143,471.92 : 52,638,649.20 = 20,739,934.68 : x
  2. Step 2: Convert to fraction form
    38,143,471.92/52,638,649.20 = 20,739,934.68/x
  3. Step 3: Cross multiply
    38,143,471.92x = 52,638,649.20 × 20,739,934.68
  4. Step 4: Simplify right side
    38,143,471.92x = 1,091,722,146,051,434.25
  5. Step 5: Solve for x
    x = 1,091,722,146,051,434.25/38,143,471.92
  6. Step 6: Final answer
    x = 28,621,467.61

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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.