Finding the Fourth Proportional to 19,555,648.72, 26,991,755.76 and 13,363,202
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Solution
The fourth proportional to 19,555,648.72, 26,991,755.76 and 13,363,202 is: 18,444,608.50
Step by Step Solution
- Step 1: Write the proportion equation
19,555,648.72 : 26,991,755.76 = 13,363,202 : x - Step 2: Convert to fraction form
19,555,648.72/26,991,755.76 = 13,363,202/x - Step 3: Cross multiply
19,555,648.72x = 26,991,755.76 × 13,363,202 - Step 4: Simplify right side
19,555,648.72x = 360,696,284,555,543.56 - Step 5: Solve for x
x = 360,696,284,555,543.56/19,555,648.72 - Step 6: Final answer
x = 18,444,608.50
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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.