Finding the Fourth Proportional to 5,349,871.28, 8,025,415.68 and 1,939,763.72
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Solution
The fourth proportional to 5,349,871.28, 8,025,415.68 and 1,939,763.72 is: 2,909,866.31
Step by Step Solution
- Step 1: Write the proportion equation
5,349,871.28 : 8,025,415.68 = 1,939,763.72 : x - Step 2: Convert to fraction form
5,349,871.28/8,025,415.68 = 1,939,763.72/x - Step 3: Cross multiply
5,349,871.28x = 8,025,415.68 × 1,939,763.72 - Step 4: Simplify right side
5,349,871.28x = 15,567,410,173,983.13 - Step 5: Solve for x
x = 15,567,410,173,983.13/5,349,871.28 - Step 6: Final answer
x = 2,909,866.31
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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.