Finding the Fourth Proportional to 216,712,465,946.62, 325,110,561,331.26 and 82,396,512,672.05
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Solution
The fourth proportional to 216,712,465,946.62, 325,110,561,331.26 and 82,396,512,672.05 is: 123,610,685,566.88
Step by Step Solution
- Step 1: Write the proportion equation
216,712,465,946.62 : 325,110,561,331.26 = 82,396,512,672.05 : x - Step 2: Convert to fraction form
216,712,465,946.62/325,110,561,331.26 = 82,396,512,672.05/x - Step 3: Cross multiply
216,712,465,946.62x = 325,110,561,331.26 × 82,396,512,672.05 - Step 4: Simplify right side
216,712,465,946.62x = 26,787,976,486,549,754,740,736 - Step 5: Solve for x
x = 26,787,976,486,549,754,740,736/216,712,465,946.62 - Step 6: Final answer
x = 123,610,685,566.88
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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.