Finding the Fourth Proportional to 235,640,935.84, 325,184,490.20 and 136,579,143.52
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Solution
The fourth proportional to 235,640,935.84, 325,184,490.20 and 136,579,143.52 is: 188,479,217.33
Step by Step Solution
- Step 1: Write the proportion equation
235,640,935.84 : 325,184,490.20 = 136,579,143.52 : x - Step 2: Convert to fraction form
235,640,935.84/325,184,490.20 = 136,579,143.52/x - Step 3: Cross multiply
235,640,935.84x = 325,184,490.20 × 136,579,143.52 - Step 4: Simplify right side
235,640,935.84x = 44,413,419,157,503,832 - Step 5: Solve for x
x = 44,413,419,157,503,832/235,640,935.84 - Step 6: Final answer
x = 188,479,217.33
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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.