Finding the Fourth Proportional to 51,543,868.62, 71,126,331.75 and 30,347,302.62
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Solution
The fourth proportional to 51,543,868.62, 71,126,331.75 and 30,347,302.62 is: 41,876,800.71
Step by Step Solution
- Step 1: Write the proportion equation
51,543,868.62 : 71,126,331.75 = 30,347,302.62 : x - Step 2: Convert to fraction form
51,543,868.62/71,126,331.75 = 30,347,302.62/x - Step 3: Cross multiply
51,543,868.62x = 71,126,331.75 × 30,347,302.62 - Step 4: Simplify right side
51,543,868.62x = 2,158,492,313,867,764.25 - Step 5: Solve for x
x = 2,158,492,313,867,764.25/51,543,868.62 - Step 6: Final answer
x = 41,876,800.71
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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.