Finding the Fourth Proportional to 9,518,317.75, 13,135,431.12 and 5,167,400.59
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Solution
The fourth proportional to 9,518,317.75, 13,135,431.12 and 5,167,400.59 is: 7,131,095.67
Step by Step Solution
- Step 1: Write the proportion equation
9,518,317.75 : 13,135,431.12 = 5,167,400.59 : x - Step 2: Convert to fraction form
9,518,317.75/13,135,431.12 = 5,167,400.59/x - Step 3: Cross multiply
9,518,317.75x = 13,135,431.12 × 5,167,400.59 - Step 4: Simplify right side
9,518,317.75x = 67,876,034,519,392.35 - Step 5: Solve for x
x = 67,876,034,519,392.35/9,518,317.75 - Step 6: Final answer
x = 7,131,095.67
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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.