Finding the Fourth Proportional to 5,220,505.18, 7,204,346.28 and 2,928,715.06
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Solution
The fourth proportional to 5,220,505.18, 7,204,346.28 and 2,928,715.06 is: 4,041,654.35
Step by Step Solution
- Step 1: Write the proportion equation
5,220,505.18 : 7,204,346.28 = 2,928,715.06 : x - Step 2: Convert to fraction form
5,220,505.18/7,204,346.28 = 2,928,715.06/x - Step 3: Cross multiply
5,220,505.18x = 7,204,346.28 × 2,928,715.06 - Step 4: Simplify right side
5,220,505.18x = 21,099,477,447,690.98 - Step 5: Solve for x
x = 21,099,477,447,690.98/5,220,505.18 - Step 6: Final answer
x = 4,041,654.35
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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.