Finding the Fourth Proportional to 137,796,369.70, 206,694,554.55 and 129,293,313.70
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Solution
The fourth proportional to 137,796,369.70, 206,694,554.55 and 129,293,313.70 is: 193,939,970.55
Step by Step Solution
- Step 1: Write the proportion equation
137,796,369.70 : 206,694,554.55 = 129,293,313.70 : x - Step 2: Convert to fraction form
137,796,369.70/206,694,554.55 = 129,293,313.70/x - Step 3: Cross multiply
137,796,369.70x = 206,694,554.55 × 129,293,313.70 - Step 4: Simplify right side
137,796,369.70x = 26,724,223,881,514,916 - Step 5: Solve for x
x = 26,724,223,881,514,916/137,796,369.70 - Step 6: Final answer
x = 193,939,970.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.