Finding the Fourth Proportional to 138,476,095.68, 191,085,107.76 and 76,581,027.84
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Solution
The fourth proportional to 138,476,095.68, 191,085,107.76 and 76,581,027.84 is: 105,675,235.03
Step by Step Solution
- Step 1: Write the proportion equation
138,476,095.68 : 191,085,107.76 = 76,581,027.84 : x - Step 2: Convert to fraction form
138,476,095.68/191,085,107.76 = 76,581,027.84/x - Step 3: Cross multiply
138,476,095.68x = 191,085,107.76 × 76,581,027.84 - Step 4: Simplify right side
138,476,095.68x = 14,633,493,957,177,960 - Step 5: Solve for x
x = 14,633,493,957,177,960/138,476,095.68 - Step 6: Final answer
x = 105,675,235.03
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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.