Finding the Fourth Proportional to 21,283,151.99, 29,370,749.66 and 11,493,595.63
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Solution
The fourth proportional to 21,283,151.99, 29,370,749.66 and 11,493,595.63 is: 15,861,161.92
Step by Step Solution
- Step 1: Write the proportion equation
21,283,151.99 : 29,370,749.66 = 11,493,595.63 : x - Step 2: Convert to fraction form
21,283,151.99/29,370,749.66 = 11,493,595.63/x - Step 3: Cross multiply
21,283,151.99x = 29,370,749.66 × 11,493,595.63 - Step 4: Simplify right side
21,283,151.99x = 337,575,519,811,105.12 - Step 5: Solve for x
x = 337,575,519,811,105.12/21,283,151.99 - Step 6: Final answer
x = 15,861,161.92
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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.