Finding the Fourth Proportional to 13,259,552.80, 19,889,329.20 and 6,871,763.20
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Solution
The fourth proportional to 13,259,552.80, 19,889,329.20 and 6,871,763.20 is: 10,307,644.80
Step by Step Solution
- Step 1: Write the proportion equation
13,259,552.80 : 19,889,329.20 = 6,871,763.20 : x - Step 2: Convert to fraction form
13,259,552.80/19,889,329.20 = 6,871,763.20/x - Step 3: Cross multiply
13,259,552.80x = 19,889,329.20 × 6,871,763.20 - Step 4: Simplify right side
13,259,552.80x = 136,674,760,469,245.44 - Step 5: Solve for x
x = 136,674,760,469,245.44/13,259,552.80 - Step 6: Final answer
x = 10,307,644.80
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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.