Finding the Fourth Proportional to 397,612,564.36, 548,700,107.46 and 218,993,023.24
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Solution
The fourth proportional to 397,612,564.36, 548,700,107.46 and 218,993,023.24 is: 302,207,490.80
Step by Step Solution
- Step 1: Write the proportion equation
397,612,564.36 : 548,700,107.46 = 218,993,023.24 : x - Step 2: Convert to fraction form
397,612,564.36/548,700,107.46 = 218,993,023.24/x - Step 3: Cross multiply
397,612,564.36x = 548,700,107.46 × 218,993,023.24 - Step 4: Simplify right side
397,612,564.36x = 120,161,495,384,778,288 - Step 5: Solve for x
x = 120,161,495,384,778,288/397,612,564.36 - Step 6: Final answer
x = 302,207,490.80
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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.