Finding the Fourth Proportional to 85,135,048.79, 117,486,362.79 and 45,976,821.75
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Solution
The fourth proportional to 85,135,048.79, 117,486,362.79 and 45,976,821.75 is: 63,448,011.57
Step by Step Solution
- Step 1: Write the proportion equation
85,135,048.79 : 117,486,362.79 = 45,976,821.75 : x - Step 2: Convert to fraction form
85,135,048.79/117,486,362.79 = 45,976,821.75/x - Step 3: Cross multiply
85,135,048.79x = 117,486,362.79 × 45,976,821.75 - Step 4: Simplify right side
85,135,048.79x = 5,401,649,560,051,663 - Step 5: Solve for x
x = 5,401,649,560,051,663/85,135,048.79 - Step 6: Final answer
x = 63,448,011.57
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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.