Finding the Fourth Proportional to 84,708,672.48, 116,906,606.64 and 49,912,212.96
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Solution
The fourth proportional to 84,708,672.48, 116,906,606.64 and 49,912,212.96 is: 68,883,943.95
Step by Step Solution
- Step 1: Write the proportion equation
84,708,672.48 : 116,906,606.64 = 49,912,212.96 : x - Step 2: Convert to fraction form
84,708,672.48/116,906,606.64 = 49,912,212.96/x - Step 3: Cross multiply
84,708,672.48x = 116,906,606.64 × 49,912,212.96 - Step 4: Simplify right side
84,708,672.48x = 5,835,067,447,046,630 - Step 5: Solve for x
x = 5,835,067,447,046,630/84,708,672.48 - Step 6: Final answer
x = 68,883,943.95
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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.