Finding the Fourth Proportional to 31,527,474.40, 47,291,211.60 and 8,808,335.20
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Solution
The fourth proportional to 31,527,474.40, 47,291,211.60 and 8,808,335.20 is: 13,212,502.80
Step by Step Solution
- Step 1: Write the proportion equation
31,527,474.40 : 47,291,211.60 = 8,808,335.20 : x - Step 2: Convert to fraction form
31,527,474.40/47,291,211.60 = 8,808,335.20/x - Step 3: Cross multiply
31,527,474.40x = 47,291,211.60 × 8,808,335.20 - Step 4: Simplify right side
31,527,474.40x = 416,556,843,786,928.31 - Step 5: Solve for x
x = 416,556,843,786,928.31/31,527,474.40 - Step 6: Final answer
x = 13,212,502.80
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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.