Finding the Fourth Proportional to 313,911,625.85, 433,274,927.67 and 243,207,386.60
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Solution
The fourth proportional to 313,911,625.85, 433,274,927.67 and 243,207,386.60 is: 335,685,760.45
Step by Step Solution
- Step 1: Write the proportion equation
313,911,625.85 : 433,274,927.67 = 243,207,386.60 : x - Step 2: Convert to fraction form
313,911,625.85/433,274,927.67 = 243,207,386.60/x - Step 3: Cross multiply
313,911,625.85x = 433,274,927.67 × 243,207,386.60 - Step 4: Simplify right side
313,911,625.85x = 105,375,662,837,924,736 - Step 5: Solve for x
x = 105,375,662,837,924,736/313,911,625.85 - Step 6: Final answer
x = 335,685,760.45
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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.