Finding the Fourth Proportional to 129,489,201.70, 194,233,802.55 and 93,351,213.70
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Solution
The fourth proportional to 129,489,201.70, 194,233,802.55 and 93,351,213.70 is: 140,026,820.55
Step by Step Solution
- Step 1: Write the proportion equation
129,489,201.70 : 194,233,802.55 = 93,351,213.70 : x - Step 2: Convert to fraction form
129,489,201.70/194,233,802.55 = 93,351,213.70/x - Step 3: Cross multiply
129,489,201.70x = 194,233,802.55 × 93,351,213.70 - Step 4: Simplify right side
129,489,201.70x = 18,131,961,209,608,656 - Step 5: Solve for x
x = 18,131,961,209,608,656/129,489,201.70 - Step 6: Final answer
x = 140,026,820.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.