Finding the Fourth Proportional to 5,390,438.70, 8,085,658.05 and 2,556,086.70
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Solution
The fourth proportional to 5,390,438.70, 8,085,658.05 and 2,556,086.70 is: 3,834,130.05
Step by Step Solution
- Step 1: Write the proportion equation
5,390,438.70 : 8,085,658.05 = 2,556,086.70 : x - Step 2: Convert to fraction form
5,390,438.70/8,085,658.05 = 2,556,086.70/x - Step 3: Cross multiply
5,390,438.70x = 8,085,658.05 × 2,556,086.70 - Step 4: Simplify right side
5,390,438.70x = 20,667,643,002,352.94 - Step 5: Solve for x
x = 20,667,643,002,352.94/5,390,438.70 - Step 6: Final answer
x = 3,834,130.05
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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.