Finding the Fourth Proportional to 125,702,808.97, 173,371,603.09 and 81,663,997.11
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Solution
The fourth proportional to 125,702,808.97, 173,371,603.09 and 81,663,997.11 is: 112,632,471.85
Step by Step Solution
- Step 1: Write the proportion equation
125,702,808.97 : 173,371,603.09 = 81,663,997.11 : x - Step 2: Convert to fraction form
125,702,808.97/173,371,603.09 = 81,663,997.11/x - Step 3: Cross multiply
125,702,808.97x = 173,371,603.09 × 81,663,997.11 - Step 4: Simplify right side
125,702,808.97x = 14,158,218,093,011,736 - Step 5: Solve for x
x = 14,158,218,093,011,736/125,702,808.97 - Step 6: Final answer
x = 112,632,471.85
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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.