Finding the Fourth Proportional to 186,302,721.42, 257,099,511.09 and 102,673,863.20
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Solution
The fourth proportional to 186,302,721.42, 257,099,511.09 and 102,673,863.20 is: 141,690,898.70
Step by Step Solution
- Step 1: Write the proportion equation
186,302,721.42 : 257,099,511.09 = 102,673,863.20 : x - Step 2: Convert to fraction form
186,302,721.42/257,099,511.09 = 102,673,863.20/x - Step 3: Cross multiply
186,302,721.42x = 257,099,511.09 × 102,673,863.20 - Step 4: Simplify right side
186,302,721.42x = 26,397,400,029,156,044 - Step 5: Solve for x
x = 26,397,400,029,156,044/186,302,721.42 - Step 6: Final answer
x = 141,690,898.70
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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.