Finding the Fourth Proportional to 5,259,583.24, 7,888,762.47 and 1,421,223.28
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Solution
The fourth proportional to 5,259,583.24, 7,888,762.47 and 1,421,223.28 is: 2,131,669.44
Step by Step Solution
- Step 1: Write the proportion equation
5,259,583.24 : 7,888,762.47 = 1,421,223.28 : x - Step 2: Convert to fraction form
5,259,583.24/7,888,762.47 = 1,421,223.28/x - Step 3: Cross multiply
5,259,583.24x = 7,888,762.47 × 1,421,223.28 - Step 4: Simplify right side
5,259,583.24x = 11,211,692,872,754.30 - Step 5: Solve for x
x = 11,211,692,872,754.30/5,259,583.24 - Step 6: Final answer
x = 2,131,669.44
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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.