Finding the Fourth Proportional to 20,836,101.97, 31,247,531.98 and 19,475,969.24
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Solution
The fourth proportional to 20,836,101.97, 31,247,531.98 and 19,475,969.24 is: 29,207,765.09
Step by Step Solution
- Step 1: Write the proportion equation
20,836,101.97 : 31,247,531.98 = 19,475,969.24 : x - Step 2: Convert to fraction form
20,836,101.97/31,247,531.98 = 19,475,969.24/x - Step 3: Cross multiply
20,836,101.97x = 31,247,531.98 × 19,475,969.24 - Step 4: Simplify right side
20,836,101.97x = 608,575,971,697,825.12 - Step 5: Solve for x
x = 608,575,971,697,825.12/20,836,101.97 - Step 6: Final answer
x = 29,207,765.09
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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.