Finding the Fourth Proportional to 168,512,639.10, 236,236,199.70 and 168,512,639.10
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Solution
The fourth proportional to 168,512,639.10, 236,236,199.70 and 168,512,639.10 is: 236,236,199.70
Step by Step Solution
- Step 1: Write the proportion equation
168,512,639.10 : 236,236,199.70 = 168,512,639.10 : x - Step 2: Convert to fraction form
168,512,639.10/236,236,199.70 = 168,512,639.10/x - Step 3: Cross multiply
168,512,639.10x = 236,236,199.70 × 168,512,639.10 - Step 4: Simplify right side
168,512,639.10x = 39,808,785,462,401,624 - Step 5: Solve for x
x = 39,808,785,462,401,624/168,512,639.10 - Step 6: Final answer
x = 236,236,199.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.