Finding the Fourth Proportional to 20,142,266.21, 27,796,331.36 and 10,974,908.96
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Solution
The fourth proportional to 20,142,266.21, 27,796,331.36 and 10,974,908.96 is: 15,145,376.54
Step by Step Solution
- Step 1: Write the proportion equation
20,142,266.21 : 27,796,331.36 = 10,974,908.96 : x - Step 2: Convert to fraction form
20,142,266.21/27,796,331.36 = 10,974,908.96/x - Step 3: Cross multiply
20,142,266.21x = 27,796,331.36 × 10,974,908.96 - Step 4: Simplify right side
20,142,266.21x = 305,062,206,043,118.50 - Step 5: Solve for x
x = 305,062,206,043,118.50/20,142,266.21 - Step 6: Final answer
x = 15,145,376.54
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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.