Finding the Fourth Proportional to 313,531,920.36, 432,649,540.49 and 174,294,203.40
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Solution
The fourth proportional to 313,531,920.36, 432,649,540.49 and 174,294,203.40 is: 240,512,375.66
Step by Step Solution
- Step 1: Write the proportion equation
313,531,920.36 : 432,649,540.49 = 174,294,203.40 : x - Step 2: Convert to fraction form
313,531,920.36/432,649,540.49 = 174,294,203.40/x - Step 3: Cross multiply
313,531,920.36x = 432,649,540.49 × 174,294,203.40 - Step 4: Simplify right side
313,531,920.36x = 75,408,307,010,209,136 - Step 5: Solve for x
x = 75,408,307,010,209,136/313,531,920.36 - Step 6: Final answer
x = 240,512,375.66
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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.