Finding the Fourth Proportional to 5,220,487.98, 7,204,322.58 and 2,928,697.86
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Solution
The fourth proportional to 5,220,487.98, 7,204,322.58 and 2,928,697.86 is: 4,041,630.63
Step by Step Solution
- Step 1: Write the proportion equation
5,220,487.98 : 7,204,322.58 = 2,928,697.86 : x - Step 2: Convert to fraction form
5,220,487.98/7,204,322.58 = 2,928,697.86/x - Step 3: Cross multiply
5,220,487.98x = 7,204,322.58 × 2,928,697.86 - Step 4: Simplify right side
5,220,487.98x = 21,099,284,122,795.68 - Step 5: Solve for x
x = 21,099,284,122,795.68/5,220,487.98 - Step 6: Final answer
x = 4,041,630.63
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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.