Finding the Fourth Proportional to 20,112,709.23, 27,756,452.68 and 11,853,120.09
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Solution
The fourth proportional to 20,112,709.23, 27,756,452.68 and 11,853,120.09 is: 16,357,844.34
Step by Step Solution
- Step 1: Write the proportion equation
20,112,709.23 : 27,756,452.68 = 11,853,120.09 : x - Step 2: Convert to fraction form
20,112,709.23/27,756,452.68 = 11,853,120.09/x - Step 3: Cross multiply
20,112,709.23x = 27,756,452.68 × 11,853,120.09 - Step 4: Simplify right side
20,112,709.23x = 329,000,566,888,442.31 - Step 5: Solve for x
x = 329,000,566,888,442.31/20,112,709.23 - Step 6: Final answer
x = 16,357,844.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.