Finding the Fourth Proportional to 55,171,907.96, 82,764,732.36 and 18,777,501.68
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Solution
The fourth proportional to 55,171,907.96, 82,764,732.36 and 18,777,501.68 is: 28,168,590.84
Step by Step Solution
- Step 1: Write the proportion equation
55,171,907.96 : 82,764,732.36 = 18,777,501.68 : x - Step 2: Convert to fraction form
55,171,907.96/82,764,732.36 = 18,777,501.68/x - Step 3: Cross multiply
55,171,907.96x = 82,764,732.36 × 18,777,501.68 - Step 4: Simplify right side
55,171,907.96x = 1,554,114,900,934,650.25 - Step 5: Solve for x
x = 1,554,114,900,934,650.25/55,171,907.96 - Step 6: Final answer
x = 28,168,590.84
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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.