Finding the Fourth Proportional to 168,181,202.80, 252,271,804.20 and 165,913,721.20
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Solution
The fourth proportional to 168,181,202.80, 252,271,804.20 and 165,913,721.20 is: 248,870,581.80
Step by Step Solution
- Step 1: Write the proportion equation
168,181,202.80 : 252,271,804.20 = 165,913,721.20 : x - Step 2: Convert to fraction form
168,181,202.80/252,271,804.20 = 165,913,721.20/x - Step 3: Cross multiply
168,181,202.80x = 252,271,804.20 × 165,913,721.20 - Step 4: Simplify right side
168,181,202.80x = 41,855,353,788,659,784 - Step 5: Solve for x
x = 41,855,353,788,659,784/168,181,202.80 - Step 6: Final answer
x = 248,870,581.80
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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.