Finding the Fourth Proportional to 107,851,782.11, 161,778,854.34 and 31,175,474.63
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Solution
The fourth proportional to 107,851,782.11, 161,778,854.34 and 31,175,474.63 is: 46,763,553.37
Step by Step Solution
- Step 1: Write the proportion equation
107,851,782.11 : 161,778,854.34 = 31,175,474.63 : x - Step 2: Convert to fraction form
107,851,782.11/161,778,854.34 = 31,175,474.63/x - Step 3: Cross multiply
107,851,782.11x = 161,778,854.34 × 31,175,474.63 - Step 4: Simplify right side
107,851,782.11x = 5,043,532,568,338,241 - Step 5: Solve for x
x = 5,043,532,568,338,241/107,851,782.11 - Step 6: Final answer
x = 46,763,553.37
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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.