Finding the Fourth Proportional to 136,495,760.22, 188,343,079.34 and 77,750,961.12
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Solution
The fourth proportional to 136,495,760.22, 188,343,079.34 and 77,750,961.12 is: 107,284,324.55
Step by Step Solution
- Step 1: Write the proportion equation
136,495,760.22 : 188,343,079.34 = 77,750,961.12 : x - Step 2: Convert to fraction form
136,495,760.22/188,343,079.34 = 77,750,961.12/x - Step 3: Cross multiply
136,495,760.22x = 188,343,079.34 × 77,750,961.12 - Step 4: Simplify right side
136,495,760.22x = 14,643,855,438,596,662 - Step 5: Solve for x
x = 14,643,855,438,596,662/136,495,760.22 - Step 6: Final answer
x = 107,284,324.55
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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.