Finding the Fourth Proportional to 221,866,996.14, 306,182,942.19 and 121,401,464.94
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Solution
The fourth proportional to 221,866,996.14, 306,182,942.19 and 121,401,464.94 is: 167,537,571.46
Step by Step Solution
- Step 1: Write the proportion equation
221,866,996.14 : 306,182,942.19 = 121,401,464.94 : x - Step 2: Convert to fraction form
221,866,996.14/306,182,942.19 = 121,401,464.94/x - Step 3: Cross multiply
221,866,996.14x = 306,182,942.19 × 121,401,464.94 - Step 4: Simplify right side
221,866,996.14x = 37,171,057,721,505,328 - Step 5: Solve for x
x = 37,171,057,721,505,328/221,866,996.14 - Step 6: Final answer
x = 167,537,571.46
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1.5x scale
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.