Finding the Fourth Proportional to 168,235,234.80, 252,352,852.20 and 91,707,730.80
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Solution
The fourth proportional to 168,235,234.80, 252,352,852.20 and 91,707,730.80 is: 137,561,596.20
Step by Step Solution
- Step 1: Write the proportion equation
168,235,234.80 : 252,352,852.20 = 91,707,730.80 : x - Step 2: Convert to fraction form
168,235,234.80/252,352,852.20 = 91,707,730.80/x - Step 3: Cross multiply
168,235,234.80x = 252,352,852.20 × 91,707,730.80 - Step 4: Simplify right side
168,235,234.80x = 23,142,707,436,169,784 - Step 5: Solve for x
x = 23,142,707,436,169,784/168,235,234.80 - Step 6: Final answer
x = 137,561,596.20
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1.5x scale
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.