Finding the Fourth Proportional to 209,516,482.22, 289,132,824.57 and 121,461,524.03
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Solution
The fourth proportional to 209,516,482.22, 289,132,824.57 and 121,461,524.03 is: 167,616,949.03
Step by Step Solution
- Step 1: Write the proportion equation
209,516,482.22 : 289,132,824.57 = 121,461,524.03 : x - Step 2: Convert to fraction form
209,516,482.22/289,132,824.57 = 121,461,524.03/x - Step 3: Cross multiply
209,516,482.22x = 289,132,824.57 × 121,461,524.03 - Step 4: Simplify right side
209,516,482.22x = 35,118,513,520,093,660 - Step 5: Solve for x
x = 35,118,513,520,093,660/209,516,482.22 - Step 6: Final answer
x = 167,616,949.03
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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.