Finding the Fourth Proportional to 91,276,193.20, 125,947,215.18 and 51,569,235.78
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Solution
The fourth proportional to 91,276,193.20, 125,947,215.18 and 51,569,235.78 is: 71,157,674.39
Step by Step Solution
- Step 1: Write the proportion equation
91,276,193.20 : 125,947,215.18 = 51,569,235.78 : x - Step 2: Convert to fraction form
91,276,193.20/125,947,215.18 = 51,569,235.78/x - Step 3: Cross multiply
91,276,193.20x = 125,947,215.18 × 51,569,235.78 - Step 4: Simplify right side
91,276,193.20x = 6,495,001,635,451,816 - Step 5: Solve for x
x = 6,495,001,635,451,816/91,276,193.20 - Step 6: Final answer
x = 71,157,674.39
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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.