Finding the Fourth Proportional to 19,982,455.76, 27,576,457.61 and 12,246,004.01
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Solution
The fourth proportional to 19,982,455.76, 27,576,457.61 and 12,246,004.01 is: 16,899,895.31
Step by Step Solution
- Step 1: Write the proportion equation
19,982,455.76 : 27,576,457.61 = 12,246,004.01 : x - Step 2: Convert to fraction form
19,982,455.76/27,576,457.61 = 12,246,004.01/x - Step 3: Cross multiply
19,982,455.76x = 27,576,457.61 × 12,246,004.01 - Step 4: Simplify right side
19,982,455.76x = 337,701,410,274,542.75 - Step 5: Solve for x
x = 337,701,410,274,542.75/19,982,455.76 - Step 6: Final answer
x = 16,899,895.31
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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.