Finding the Fourth Proportional to 168,785,825.62, 253,177,316.18 and 131,928,717.62
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Solution
The fourth proportional to 168,785,825.62, 253,177,316.18 and 131,928,717.62 is: 197,891,964.75
Step by Step Solution
- Step 1: Write the proportion equation
168,785,825.62 : 253,177,316.18 = 131,928,717.62 : x - Step 2: Convert to fraction form
168,785,825.62/253,177,316.18 = 131,928,717.62/x - Step 3: Cross multiply
168,785,825.62x = 253,177,316.18 × 131,928,717.62 - Step 4: Simplify right side
168,785,825.62x = 33,401,358,652,175,148 - Step 5: Solve for x
x = 33,401,358,652,175,148/168,785,825.62 - Step 6: Final answer
x = 197,891,964.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.