Finding the Fourth Proportional to 129,945,409.31, 194,916,277.29 and 31,577,838.96
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Solution
The fourth proportional to 129,945,409.31, 194,916,277.29 and 31,577,838.96 is: 47,366,312.12
Step by Step Solution
- Step 1: Write the proportion equation
129,945,409.31 : 194,916,277.29 = 31,577,838.96 : x - Step 2: Convert to fraction form
129,945,409.31/194,916,277.29 = 31,577,838.96/x - Step 3: Cross multiply
129,945,409.31x = 194,916,277.29 × 31,577,838.96 - Step 4: Simplify right side
129,945,409.31x = 6,155,034,815,795,678 - Step 5: Solve for x
x = 6,155,034,815,795,678/129,945,409.31 - Step 6: Final answer
x = 47,366,312.12
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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.