Finding the Fourth Proportional to 19,798,152.06, 27,325,280 and 12,910,676.70
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Solution
The fourth proportional to 19,798,152.06, 27,325,280 and 12,910,676.70 is: 17,819,231.55
Step by Step Solution
- Step 1: Write the proportion equation
19,798,152.06 : 27,325,280 = 12,910,676.70 : x - Step 2: Convert to fraction form
19,798,152.06/27,325,280 = 12,910,676.70/x - Step 3: Cross multiply
19,798,152.06x = 27,325,280 × 12,910,676.70 - Step 4: Simplify right side
19,798,152.06x = 352,787,855,816,976 - Step 5: Solve for x
x = 352,787,855,816,976/19,798,152.06 - Step 6: Final answer
x = 17,819,231.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.