Finding the Fourth Proportional to 53,146,238.18, 79,719,358.30 and 12,756,722.18
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Solution
The fourth proportional to 53,146,238.18, 79,719,358.30 and 12,756,722.18 is: 19,135,083.52
Step by Step Solution
- Step 1: Write the proportion equation
53,146,238.18 : 79,719,358.30 = 12,756,722.18 : x - Step 2: Convert to fraction form
53,146,238.18/79,719,358.30 = 12,756,722.18/x - Step 3: Cross multiply
53,146,238.18x = 79,719,358.30 × 12,756,722.18 - Step 4: Simplify right side
53,146,238.18x = 1,016,957,706,200,977 - Step 5: Solve for x
x = 1,016,957,706,200,977/53,146,238.18 - Step 6: Final answer
x = 19,135,083.52
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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.