Finding the Fourth Proportional to 10,134,214.70, 15,203,914.05 and 7,148,230.70
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Solution
The fourth proportional to 10,134,214.70, 15,203,914.05 and 7,148,230.70 is: 10,724,174.33
Step by Step Solution
- Step 1: Write the proportion equation
10,134,214.70 : 15,203,914.05 = 7,148,230.70 : x - Step 2: Convert to fraction form
10,134,214.70/15,203,914.05 = 7,148,230.70/x - Step 3: Cross multiply
10,134,214.70x = 15,203,914.05 × 7,148,230.70 - Step 4: Simplify right side
10,134,214.70x = 108,681,085,172,371.34 - Step 5: Solve for x
x = 108,681,085,172,371.34/10,134,214.70 - Step 6: Final answer
x = 10,724,174.33
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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.