Finding the Fourth Proportional to 120,973,501.80, 181,460,252.70 and 40,194,469.80
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Solution
The fourth proportional to 120,973,501.80, 181,460,252.70 and 40,194,469.80 is: 60,291,704.70
Step by Step Solution
- Step 1: Write the proportion equation
120,973,501.80 : 181,460,252.70 = 40,194,469.80 : x - Step 2: Convert to fraction form
120,973,501.80/181,460,252.70 = 40,194,469.80/x - Step 3: Cross multiply
120,973,501.80x = 181,460,252.70 × 40,194,469.80 - Step 4: Simplify right side
120,973,501.80x = 7,293,698,647,050,517 - Step 5: Solve for x
x = 7,293,698,647,050,517/120,973,501.80 - Step 6: Final answer
x = 60,291,704.70
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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.