Finding the Fourth Proportional to 136,062,896.15, 187,782,737.42 and 77,334,389.21
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Solution
The fourth proportional to 136,062,896.15, 187,782,737.42 and 77,334,389.21 is: 106,730,517.38
Step by Step Solution
- Step 1: Write the proportion equation
136,062,896.15 : 187,782,737.42 = 77,334,389.21 : x - Step 2: Convert to fraction form
136,062,896.15/187,782,737.42 = 77,334,389.21/x - Step 3: Cross multiply
136,062,896.15x = 187,782,737.42 × 77,334,389.21 - Step 4: Simplify right side
136,062,896.15x = 14,522,063,301,811,934 - Step 5: Solve for x
x = 14,522,063,301,811,934/136,062,896.15 - Step 6: Final answer
x = 106,730,517.38
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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.