Finding the Fourth Proportional to 10,134,211.70, 15,203,909.55 and 7,148,227.70
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Solution
The fourth proportional to 10,134,211.70, 15,203,909.55 and 7,148,227.70 is: 10,724,169.83
Step by Step Solution
- Step 1: Write the proportion equation
10,134,211.70 : 15,203,909.55 = 7,148,227.70 : x - Step 2: Convert to fraction form
10,134,211.70/15,203,909.55 = 7,148,227.70/x - Step 3: Cross multiply
10,134,211.70x = 15,203,909.55 × 7,148,227.70 - Step 4: Simplify right side
10,134,211.70x = 108,681,007,393,604.55 - Step 5: Solve for x
x = 108,681,007,393,604.55/10,134,211.70 - Step 6: Final answer
x = 10,724,169.83
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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.