Finding the Fourth Proportional to 413,515,422.30, 620,273,133.45 and 260,460,414.30
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Solution
The fourth proportional to 413,515,422.30, 620,273,133.45 and 260,460,414.30 is: 390,690,621.45
Step by Step Solution
- Step 1: Write the proportion equation
413,515,422.30 : 620,273,133.45 = 260,460,414.30 : x - Step 2: Convert to fraction form
413,515,422.30/620,273,133.45 = 260,460,414.30/x - Step 3: Cross multiply
413,515,422.30x = 620,273,133.45 × 260,460,414.30 - Step 4: Simplify right side
413,515,422.30x = 161,556,597,317,546,208 - Step 5: Solve for x
x = 161,556,597,317,546,208/413,515,422.30 - Step 6: Final answer
x = 390,690,621.45
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Similar ratio
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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.