Finding the Fourth Proportional to 147,274,447.68, 203,193,692.88 and 85,382,431.92
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Solution
The fourth proportional to 147,274,447.68, 203,193,692.88 and 85,382,431.92 is: 117,801,641.24
Step by Step Solution
- Step 1: Write the proportion equation
147,274,447.68 : 203,193,692.88 = 85,382,431.92 : x - Step 2: Convert to fraction form
147,274,447.68/203,193,692.88 = 85,382,431.92/x - Step 3: Cross multiply
147,274,447.68x = 203,193,692.88 × 85,382,431.92 - Step 4: Simplify right side
147,274,447.68x = 17,349,171,648,899,988 - Step 5: Solve for x
x = 17,349,171,648,899,988/147,274,447.68 - Step 6: Final answer
x = 117,801,641.24
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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.