Finding the Fourth Proportional to 54,128,913.12, 81,189,286.04 and 17,239,312.40
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Solution
The fourth proportional to 54,128,913.12, 81,189,286.04 and 17,239,312.40 is: 25,857,668.02
Step by Step Solution
- Step 1: Write the proportion equation
54,128,913.12 : 81,189,286.04 = 17,239,312.40 : x - Step 2: Convert to fraction form
54,128,913.12/81,189,286.04 = 17,239,312.40/x - Step 3: Cross multiply
54,128,913.12x = 81,189,286.04 × 17,239,312.40 - Step 4: Simplify right side
54,128,913.12x = 1,399,647,465,576,519 - Step 5: Solve for x
x = 1,399,647,465,576,519/54,128,913.12 - Step 6: Final answer
x = 25,857,668.02
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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.