Finding the Fourth Proportional to 102,622,349.12, 141,618,797.04 and 55,579,424.75
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Solution
The fourth proportional to 102,622,349.12, 141,618,797.04 and 55,579,424.75 is: 76,699,581.91
Step by Step Solution
- Step 1: Write the proportion equation
102,622,349.12 : 141,618,797.04 = 55,579,424.75 : x - Step 2: Convert to fraction form
102,622,349.12/141,618,797.04 = 55,579,424.75/x - Step 3: Cross multiply
102,622,349.12x = 141,618,797.04 × 55,579,424.75 - Step 4: Simplify right side
102,622,349.12x = 7,871,091,272,284,211 - Step 5: Solve for x
x = 7,871,091,272,284,211/102,622,349.12 - Step 6: Final answer
x = 76,699,581.91
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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.