Finding the Fourth Proportional to 108,172,274.40, 149,277,869.91 and 58,612,608.99
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Solution
The fourth proportional to 108,172,274.40, 149,277,869.91 and 58,612,608.99 is: 80,885,471.52
Step by Step Solution
- Step 1: Write the proportion equation
108,172,274.40 : 149,277,869.91 = 58,612,608.99 : x - Step 2: Convert to fraction form
108,172,274.40/149,277,869.91 = 58,612,608.99/x - Step 3: Cross multiply
108,172,274.40x = 149,277,869.91 × 58,612,608.99 - Step 4: Simplify right side
108,172,274.40x = 8,749,565,419,894,917 - Step 5: Solve for x
x = 8,749,565,419,894,917/108,172,274.40 - Step 6: Final answer
x = 80,885,471.52
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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.