Finding the Fourth Proportional to 770,106,919.43, 1,148,685,606.05 and 699,409,035.14
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Solution
The fourth proportional to 770,106,919.43, 1,148,685,606.05 and 699,409,035.14 is: 1,043,233,181.18
Step by Step Solution
- Step 1: Write the proportion equation
770,106,919.43 : 1,148,685,606.05 = 699,409,035.14 : x - Step 2: Convert to fraction form
770,106,919.43/1,148,685,606.05 = 699,409,035.14/x - Step 3: Cross multiply
770,106,919.43x = 1,148,685,606.05 × 699,409,035.14 - Step 4: Simplify right side
770,106,919.43x = 803,401,091,397,396,224 - Step 5: Solve for x
x = 803,401,091,397,396,224/770,106,919.43 - Step 6: Final answer
x = 1,043,233,181.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.