Finding the Fourth Proportional to 98,112,247.80, 147,168,371.70 and 33,394,543.80
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Solution
The fourth proportional to 98,112,247.80, 147,168,371.70 and 33,394,543.80 is: 50,091,815.70
Step by Step Solution
- Step 1: Write the proportion equation
98,112,247.80 : 147,168,371.70 = 33,394,543.80 : x - Step 2: Convert to fraction form
98,112,247.80/147,168,371.70 = 33,394,543.80/x - Step 3: Cross multiply
98,112,247.80x = 147,168,371.70 × 33,394,543.80 - Step 4: Simplify right side
98,112,247.80x = 4,914,620,634,710,330 - Step 5: Solve for x
x = 4,914,620,634,710,330/98,112,247.80 - Step 6: Final answer
x = 50,091,815.70
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Double scale
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Similar ratio
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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.