Finding the Fourth Proportional to 149,562,937.16, 206,431,290.60 and 87,703,204.76
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Solution
The fourth proportional to 149,562,937.16, 206,431,290.60 and 87,703,204.76 is: 121,050,616.50
Step by Step Solution
- Step 1: Write the proportion equation
149,562,937.16 : 206,431,290.60 = 87,703,204.76 : x - Step 2: Convert to fraction form
149,562,937.16/206,431,290.60 = 87,703,204.76/x - Step 3: Cross multiply
149,562,937.16x = 206,431,290.60 × 87,703,204.76 - Step 4: Simplify right side
149,562,937.16x = 18,104,685,748,362,864 - Step 5: Solve for x
x = 18,104,685,748,362,864/149,562,937.16 - Step 6: Final answer
x = 121,050,616.50
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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.