Finding the Fourth Proportional to 137,163,409.27, 189,285,603.60 and 74,439,490.67
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Solution
The fourth proportional to 137,163,409.27, 189,285,603.60 and 74,439,490.67 is: 102,726,550.75
Step by Step Solution
- Step 1: Write the proportion equation
137,163,409.27 : 189,285,603.60 = 74,439,490.67 : x - Step 2: Convert to fraction form
137,163,409.27/189,285,603.60 = 74,439,490.67/x - Step 3: Cross multiply
137,163,409.27x = 189,285,603.60 × 74,439,490.67 - Step 4: Simplify right side
137,163,409.27x = 14,090,323,923,190,060 - Step 5: Solve for x
x = 14,090,323,923,190,060/137,163,409.27 - Step 6: Final answer
x = 102,726,550.75
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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.