Finding the Fourth Proportional to 217,971,566.19, 300,806,813.16 and 133,212,408.03
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Solution
The fourth proportional to 217,971,566.19, 300,806,813.16 and 133,212,408.03 is: 183,836,821.62
Step by Step Solution
- Step 1: Write the proportion equation
217,971,566.19 : 300,806,813.16 = 133,212,408.03 : x - Step 2: Convert to fraction form
217,971,566.19/300,806,813.16 = 133,212,408.03/x - Step 3: Cross multiply
217,971,566.19x = 300,806,813.16 × 133,212,408.03 - Step 4: Simplify right side
217,971,566.19x = 40,071,199,932,873,896 - Step 5: Solve for x
x = 40,071,199,932,873,896/217,971,566.19 - Step 6: Final answer
x = 183,836,821.62
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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.