Finding the Fourth Proportional to 30,964,785.21, 46,421,196.26 and 13,690,197.09
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Solution
The fourth proportional to 30,964,785.21, 46,421,196.26 and 13,690,197.09 is: 20,523,808.63
Step by Step Solution
- Step 1: Write the proportion equation
30,964,785.21 : 46,421,196.26 = 13,690,197.09 : x - Step 2: Convert to fraction form
30,964,785.21/46,421,196.26 = 13,690,197.09/x - Step 3: Cross multiply
30,964,785.21x = 46,421,196.26 × 13,690,197.09 - Step 4: Simplify right side
30,964,785.21x = 635,515,325,884,519.88 - Step 5: Solve for x
x = 635,515,325,884,519.88/30,964,785.21 - Step 6: Final answer
x = 20,523,808.63
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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.