Finding the Fourth Proportional to 134,128,217.40, 201,192,326.10 and 126,192,031.80
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Solution
The fourth proportional to 134,128,217.40, 201,192,326.10 and 126,192,031.80 is: 189,288,047.70
Step by Step Solution
- Step 1: Write the proportion equation
134,128,217.40 : 201,192,326.10 = 126,192,031.80 : x - Step 2: Convert to fraction form
134,128,217.40/201,192,326.10 = 126,192,031.80/x - Step 3: Cross multiply
134,128,217.40x = 201,192,326.10 × 126,192,031.80 - Step 4: Simplify right side
134,128,217.40x = 25,388,868,413,127,168 - Step 5: Solve for x
x = 25,388,868,413,127,168/134,128,217.40 - Step 6: Final answer
x = 189,288,047.70
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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.