Finding the Fourth Proportional to 31,101,101.70, 46,651,652.55 and 19,791,687.30
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Solution
The fourth proportional to 31,101,101.70, 46,651,652.55 and 19,791,687.30 is: 29,687,530.95
Step by Step Solution
- Step 1: Write the proportion equation
31,101,101.70 : 46,651,652.55 = 19,791,687.30 : x - Step 2: Convert to fraction form
31,101,101.70/46,651,652.55 = 19,791,687.30/x - Step 3: Cross multiply
31,101,101.70x = 46,651,652.55 × 19,791,687.30 - Step 4: Simplify right side
31,101,101.70x = 923,314,919,297,847.62 - Step 5: Solve for x
x = 923,314,919,297,847.62/31,101,101.70 - Step 6: Final answer
x = 29,687,530.95
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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.