Finding the Fourth Proportional to 199,117,516.87, 274,781,191.75 and 115,502,558.23
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Solution
The fourth proportional to 199,117,516.87, 274,781,191.75 and 115,502,558.23 is: 159,392,961.00
Step by Step Solution
- Step 1: Write the proportion equation
199,117,516.87 : 274,781,191.75 = 115,502,558.23 : x - Step 2: Convert to fraction form
199,117,516.87/274,781,191.75 = 115,502,558.23/x - Step 3: Cross multiply
199,117,516.87x = 274,781,191.75 × 115,502,558.23 - Step 4: Simplify right side
199,117,516.87x = 31,737,930,600,613,172 - Step 5: Solve for x
x = 31,737,930,600,613,172/199,117,516.87 - Step 6: Final answer
x = 159,392,961.00
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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.