Finding the Fourth Proportional to 263,426,083.94, 394,985,961.30 and 99,676,490.12
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Solution
The fourth proportional to 263,426,083.94, 394,985,961.30 and 99,676,490.12 is: 149,456,779.98
Step by Step Solution
- Step 1: Write the proportion equation
263,426,083.94 : 394,985,961.30 = 99,676,490.12 : x - Step 2: Convert to fraction form
263,426,083.94/394,985,961.30 = 99,676,490.12/x - Step 3: Cross multiply
263,426,083.94x = 394,985,961.30 × 99,676,490.12 - Step 4: Simplify right side
263,426,083.94x = 39,370,814,269,058,152 - Step 5: Solve for x
x = 39,370,814,269,058,152/263,426,083.94 - Step 6: Final answer
x = 149,456,779.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.