Finding the Fourth Proportional to 98,561,571.40, 135,999,858.18 and 56,737,552.16
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Solution
The fourth proportional to 98,561,571.40, 135,999,858.18 and 56,737,552.16 is: 78,289,123.62
Step by Step Solution
- Step 1: Write the proportion equation
98,561,571.40 : 135,999,858.18 = 56,737,552.16 : x - Step 2: Convert to fraction form
98,561,571.40/135,999,858.18 = 56,737,552.16/x - Step 3: Cross multiply
98,561,571.40x = 135,999,858.18 × 56,737,552.16 - Step 4: Simplify right side
98,561,571.40x = 7,716,299,047,240,353 - Step 5: Solve for x
x = 7,716,299,047,240,353/98,561,571.40 - Step 6: Final answer
x = 78,289,123.62
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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.