Finding the Fourth Proportional to 5,147,605.12, 7,104,325.04 and 2,972,144.62
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Solution
The fourth proportional to 5,147,605.12, 7,104,325.04 and 2,972,144.62 is: 4,101,923.31
Step by Step Solution
- Step 1: Write the proportion equation
5,147,605.12 : 7,104,325.04 = 2,972,144.62 : x - Step 2: Convert to fraction form
5,147,605.12/7,104,325.04 = 2,972,144.62/x - Step 3: Cross multiply
5,147,605.12x = 7,104,325.04 × 2,972,144.62 - Step 4: Simplify right side
5,147,605.12x = 21,115,081,446,367.29 - Step 5: Solve for x
x = 21,115,081,446,367.29/5,147,605.12 - Step 6: Final answer
x = 4,101,923.31
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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.