Finding the Fourth Proportional to 258,114,424.26, 356,193,420.69 and 140,640,719.80
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Solution
The fourth proportional to 258,114,424.26, 356,193,420.69 and 140,640,719.80 is: 194,081,749.66
Step by Step Solution
- Step 1: Write the proportion equation
258,114,424.26 : 356,193,420.69 = 140,640,719.80 : x - Step 2: Convert to fraction form
258,114,424.26/356,193,420.69 = 140,640,719.80/x - Step 3: Cross multiply
258,114,424.26x = 356,193,420.69 × 140,640,719.80 - Step 4: Simplify right side
258,114,424.26x = 50,095,299,073,865,816 - Step 5: Solve for x
x = 50,095,299,073,865,816/258,114,424.26 - Step 6: Final answer
x = 194,081,749.66
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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.