Finding the Fourth Proportional to 7,134,845.05, 9,846,036.23 and 3,871,576.79
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Solution
The fourth proportional to 7,134,845.05, 9,846,036.23 and 3,871,576.79 is: 5,342,748.87
Step by Step Solution
- Step 1: Write the proportion equation
7,134,845.05 : 9,846,036.23 = 3,871,576.79 : x - Step 2: Convert to fraction form
7,134,845.05/9,846,036.23 = 3,871,576.79/x - Step 3: Cross multiply
7,134,845.05x = 9,846,036.23 × 3,871,576.79 - Step 4: Simplify right side
7,134,845.05x = 38,119,685,341,567.10 - Step 5: Solve for x
x = 38,119,685,341,567.10/7,134,845.05 - Step 6: Final answer
x = 5,342,748.87
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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.