Finding the Fourth Proportional to 168,494,966.90, 252,742,450.35 and 82,288,675.70
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Solution
The fourth proportional to 168,494,966.90, 252,742,450.35 and 82,288,675.70 is: 123,433,013.55
Step by Step Solution
- Step 1: Write the proportion equation
168,494,966.90 : 252,742,450.35 = 82,288,675.70 : x - Step 2: Convert to fraction form
168,494,966.90/252,742,450.35 = 82,288,675.70/x - Step 3: Cross multiply
168,494,966.90x = 252,742,450.35 × 82,288,675.70 - Step 4: Simplify right side
168,494,966.90x = 20,797,841,532,474,500 - Step 5: Solve for x
x = 20,797,841,532,474,500/168,494,966.90 - Step 6: Final answer
x = 123,433,013.55
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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.