Finding the Fourth Proportional to 261,790,893.09, 361,273,869.32 and 144,320,427.09
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Solution
The fourth proportional to 261,790,893.09, 361,273,869.32 and 144,320,427.09 is: 199,163,532.77
Step by Step Solution
- Step 1: Write the proportion equation
261,790,893.09 : 361,273,869.32 = 144,320,427.09 : x - Step 2: Convert to fraction form
261,790,893.09/361,273,869.32 = 144,320,427.09/x - Step 3: Cross multiply
261,790,893.09x = 361,273,869.32 × 144,320,427.09 - Step 4: Simplify right side
261,790,893.09x = 52,139,199,115,997,648 - Step 5: Solve for x
x = 52,139,199,115,997,648/261,790,893.09 - Step 6: Final answer
x = 199,163,532.77
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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.