Finding the Third Proportional to 5,178,913.75 and 7,840,346.75
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Solution
The third proportional to 5,178,913.75 and 7,840,346.75 is: 11,869,484.63
Step by Step Solution
- Step 1: Write the proportion equation
5,178,913.75 : 7,840,346.75 = 7,840,346.75 : x - Step 2: Convert to fraction form
5,178,913.75/7,840,346.75 = 7,840,346.75/x - Step 3: Cross multiply
5,178,913.75x = 7,840,346.75 × 7,840,346.75 - Step 4: Simplify right side
5,178,913.75x = 61,471,037,160,235.56 - Step 5: Solve for x
x = 61,471,037,160,235.56/5,178,913.75 - Step 6: Final answer
x = 11,869,484.63
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.