Finding the Fourth Proportional to 9,486,321.88, 13,091,121.43 and 5,135,404.99
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Solution
The fourth proportional to 9,486,321.88, 13,091,121.43 and 5,135,404.99 is: 7,086,857.39
Step by Step Solution
- Step 1: Write the proportion equation
9,486,321.88 : 13,091,121.43 = 5,135,404.99 : x - Step 2: Convert to fraction form
9,486,321.88/13,091,121.43 = 5,135,404.99/x - Step 3: Cross multiply
9,486,321.88x = 13,091,121.43 × 5,135,404.99 - Step 4: Simplify right side
9,486,321.88x = 67,228,210,316,317.94 - Step 5: Solve for x
x = 67,228,210,316,317.94/9,486,321.88 - Step 6: Final answer
x = 7,086,857.39
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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.