Home / 38,685,738.92-53,384,211.36-21,279,274.16

Finding the Fourth Proportional to 38,685,738.92, 53,384,211.36 and 21,279,274.16

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Solution

The fourth proportional to 38,685,738.92, 53,384,211.36 and 21,279,274.16 is: 29,364,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,685,738.92 : 53,384,211.36 = 21,279,274.16 : x
  2. Step 2: Convert to fraction form
    38,685,738.92/53,384,211.36 = 21,279,274.16/x
  3. Step 3: Cross multiply
    38,685,738.92x = 53,384,211.36 × 21,279,274.16
  4. Step 4: Simplify right side
    38,685,738.92x = 1,135,977,269,344,826.50
  5. Step 5: Solve for x
    x = 1,135,977,269,344,826.50/38,685,738.92
  6. Step 6: Final answer
    x = 29,364,238.63

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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.