Finding the Fourth Proportional to 257,378,863.97, 355,353,862.52 and 197,733,932.39
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Solution
The fourth proportional to 257,378,863.97, 355,353,862.52 and 197,733,932.39 is: 273,004,222.42
Step by Step Solution
- Step 1: Write the proportion equation
257,378,863.97 : 355,353,862.52 = 197,733,932.39 : x - Step 2: Convert to fraction form
257,378,863.97/355,353,862.52 = 197,733,932.39/x - Step 3: Cross multiply
257,378,863.97x = 355,353,862.52 × 197,733,932.39 - Step 4: Simplify right side
257,378,863.97x = 70,265,516,627,437,752 - Step 5: Solve for x
x = 70,265,516,627,437,752/257,378,863.97 - Step 6: Final answer
x = 273,004,222.42
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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.