Finding the Fourth Proportional to 91,426,766.36, 126,162,387.05 and 52,270,193.48
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Solution
The fourth proportional to 91,426,766.36, 126,162,387.05 and 52,270,193.48 is: 72,129,121.95
Step by Step Solution
- Step 1: Write the proportion equation
91,426,766.36 : 126,162,387.05 = 52,270,193.48 : x - Step 2: Convert to fraction form
91,426,766.36/126,162,387.05 = 52,270,193.48/x - Step 3: Cross multiply
91,426,766.36x = 126,162,387.05 × 52,270,193.48 - Step 4: Simplify right side
91,426,766.36x = 6,594,532,380,109,984 - Step 5: Solve for x
x = 6,594,532,380,109,984/91,426,766.36 - Step 6: Final answer
x = 72,129,121.95
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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.