Finding the Fourth Proportional to 12,871,201.24, 19,306,790.70 and 3,286,581.40
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Solution
The fourth proportional to 12,871,201.24, 19,306,790.70 and 3,286,581.40 is: 4,929,869.25
Step by Step Solution
- Step 1: Write the proportion equation
12,871,201.24 : 19,306,790.70 = 3,286,581.40 : x - Step 2: Convert to fraction form
12,871,201.24/19,306,790.70 = 3,286,581.40/x - Step 3: Cross multiply
12,871,201.24x = 19,306,790.70 × 3,286,581.40 - Step 4: Simplify right side
12,871,201.24x = 63,453,339,208,312.98 - Step 5: Solve for x
x = 63,453,339,208,312.98/12,871,201.24 - Step 6: Final answer
x = 4,929,869.25
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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.