Finding the Fourth Proportional to 136,932,656.85, 188,971,636.41 and 75,053,153.97
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Solution
The fourth proportional to 136,932,656.85, 188,971,636.41 and 75,053,153.97 is: 103,575,857.28
Step by Step Solution
- Step 1: Write the proportion equation
136,932,656.85 : 188,971,636.41 = 75,053,153.97 : x - Step 2: Convert to fraction form
136,932,656.85/188,971,636.41 = 75,053,153.97/x - Step 3: Cross multiply
136,932,656.85x = 188,971,636.41 × 75,053,153.97 - Step 4: Simplify right side
136,932,656.85x = 14,182,917,323,442,588 - Step 5: Solve for x
x = 14,182,917,323,442,588/136,932,656.85 - Step 6: Final answer
x = 103,575,857.28
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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.