Finding the Fourth Proportional to 217,744,266.80, 326,616,400.20 and 137,122,698.80
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Solution
The fourth proportional to 217,744,266.80, 326,616,400.20 and 137,122,698.80 is: 205,684,048.20
Step by Step Solution
- Step 1: Write the proportion equation
217,744,266.80 : 326,616,400.20 = 137,122,698.80 : x - Step 2: Convert to fraction form
217,744,266.80/326,616,400.20 = 137,122,698.80/x - Step 3: Cross multiply
217,744,266.80x = 326,616,400.20 × 137,122,698.80 - Step 4: Simplify right side
217,744,266.80x = 44,786,522,267,764,864 - Step 5: Solve for x
x = 44,786,522,267,764,864/217,744,266.80 - Step 6: Final answer
x = 205,684,048.20
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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.