Home / 147,512,631.86-203,568,082.15-81,433,673.11

Finding the Fourth Proportional to 147,512,631.86, 203,568,082.15 and 81,433,673.11

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Solution

The fourth proportional to 147,512,631.86, 203,568,082.15 and 81,433,673.11 is: 112,378,827.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,512,631.86 : 203,568,082.15 = 81,433,673.11 : x
  2. Step 2: Convert to fraction form
    147,512,631.86/203,568,082.15 = 81,433,673.11/x
  3. Step 3: Cross multiply
    147,512,631.86x = 203,568,082.15 × 81,433,673.11
  4. Step 4: Simplify right side
    147,512,631.86x = 16,577,296,656,414,886
  5. Step 5: Solve for x
    x = 16,577,296,656,414,886/147,512,631.86
  6. Step 6: Final answer
    x = 112,378,827.82

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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.