Finding the Fourth Proportional to 38,568,847.18, 53,226,544.26 and 21,165,815.14
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Solution
The fourth proportional to 38,568,847.18, 53,226,544.26 and 21,165,815.14 is: 29,209,667.35
Step by Step Solution
- Step 1: Write the proportion equation
38,568,847.18 : 53,226,544.26 = 21,165,815.14 : x - Step 2: Convert to fraction form
38,568,847.18/53,226,544.26 = 21,165,815.14/x - Step 3: Cross multiply
38,568,847.18x = 53,226,544.26 × 21,165,815.14 - Step 4: Simplify right side
38,568,847.18x = 1,126,583,196,348,188 - Step 5: Solve for x
x = 1,126,583,196,348,188/38,568,847.18 - Step 6: Final answer
x = 29,209,667.35
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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.