Finding the Fourth Proportional to 19,643,338.23, 27,108,418.70 and 11,272,240.95
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Solution
The fourth proportional to 19,643,338.23, 27,108,418.70 and 11,272,240.95 is: 15,556,043.67
Step by Step Solution
- Step 1: Write the proportion equation
19,643,338.23 : 27,108,418.70 = 11,272,240.95 : x - Step 2: Convert to fraction form
19,643,338.23/27,108,418.70 = 11,272,240.95/x - Step 3: Cross multiply
19,643,338.23x = 27,108,418.70 × 11,272,240.95 - Step 4: Simplify right side
19,643,338.23x = 305,572,627,359,885.75 - Step 5: Solve for x
x = 305,572,627,359,885.75/19,643,338.23 - Step 6: Final answer
x = 15,556,043.67
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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.