Finding the Fourth Proportional to 11,190,719.80, 16,786,079.70 and 3,103,679.80
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Solution
The fourth proportional to 11,190,719.80, 16,786,079.70 and 3,103,679.80 is: 4,655,519.70
Step by Step Solution
- Step 1: Write the proportion equation
11,190,719.80 : 16,786,079.70 = 3,103,679.80 : x - Step 2: Convert to fraction form
11,190,719.80/16,786,079.70 = 3,103,679.80/x - Step 3: Cross multiply
11,190,719.80x = 16,786,079.70 × 3,103,679.80 - Step 4: Simplify right side
11,190,719.80x = 52,098,616,486,080.05 - Step 5: Solve for x
x = 52,098,616,486,080.05/11,190,719.80 - Step 6: Final answer
x = 4,655,519.70
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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.