Finding the Fourth Proportional to 87,914,974.86, 121,330,118.09 and 48,769,364.32
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Solution
The fourth proportional to 87,914,974.86, 121,330,118.09 and 48,769,364.32 is: 67,305,857.07
Step by Step Solution
- Step 1: Write the proportion equation
87,914,974.86 : 121,330,118.09 = 48,769,364.32 : x - Step 2: Convert to fraction form
87,914,974.86/121,330,118.09 = 48,769,364.32/x - Step 3: Cross multiply
87,914,974.86x = 121,330,118.09 × 48,769,364.32 - Step 4: Simplify right side
87,914,974.86x = 5,917,192,731,938,431 - Step 5: Solve for x
x = 5,917,192,731,938,431/87,914,974.86 - Step 6: Final answer
x = 67,305,857.07
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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.