Finding the Fourth Proportional to 2,931,543,889.92, 4,045,557,650.69 and 1,593,437,128.35
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Solution
The fourth proportional to 2,931,543,889.92, 4,045,557,650.69 and 1,593,437,128.35 is: 2,198,957,957.84
Step by Step Solution
- Step 1: Write the proportion equation
2,931,543,889.92 : 4,045,557,650.69 = 1,593,437,128.35 : x - Step 2: Convert to fraction form
2,931,543,889.92/4,045,557,650.69 = 1,593,437,128.35/x - Step 3: Cross multiply
2,931,543,889.92x = 4,045,557,650.69 × 1,593,437,128.35 - Step 4: Simplify right side
2,931,543,889.92x = 6,446,341,765,489,845,248 - Step 5: Solve for x
x = 6,446,341,765,489,845,248/2,931,543,889.92 - Step 6: Final answer
x = 2,198,957,957.84
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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.