Finding the Fourth Proportional to 20,142,272.76, 27,796,340.36 and 10,974,915.48
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Solution
The fourth proportional to 20,142,272.76, 27,796,340.36 and 10,974,915.48 is: 15,145,385.52
Step by Step Solution
- Step 1: Write the proportion equation
20,142,272.76 : 27,796,340.36 = 10,974,915.48 : x - Step 2: Convert to fraction form
20,142,272.76/27,796,340.36 = 10,974,915.48/x - Step 3: Cross multiply
20,142,272.76x = 27,796,340.36 × 10,974,915.48 - Step 4: Simplify right side
20,142,272.76x = 305,062,486,104,312.75 - Step 5: Solve for x
x = 305,062,486,104,312.75/20,142,272.76 - Step 6: Final answer
x = 15,145,385.52
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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.