Finding the Fourth Proportional to 115,128,312.80, 172,673,553.26 and 41,336,817.08
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Solution
The fourth proportional to 115,128,312.80, 172,673,553.26 and 41,336,817.08 is: 61,998,433.85
Step by Step Solution
- Step 1: Write the proportion equation
115,128,312.80 : 172,673,553.26 = 41,336,817.08 : x - Step 2: Convert to fraction form
115,128,312.80/172,673,553.26 = 41,336,817.08/x - Step 3: Cross multiply
115,128,312.80x = 172,673,553.26 × 41,336,817.08 - Step 4: Simplify right side
115,128,312.80x = 7,137,775,085,662,257 - Step 5: Solve for x
x = 7,137,775,085,662,257/115,128,312.80 - Step 6: Final answer
x = 61,998,433.85
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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.