Finding the Fourth Proportional to 7,240,984.36, 9,992,235.18 and 4,341,974.92
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Solution
The fourth proportional to 7,240,984.36, 9,992,235.18 and 4,341,974.92 is: 5,991,731.56
Step by Step Solution
- Step 1: Write the proportion equation
7,240,984.36 : 9,992,235.18 = 4,341,974.92 : x - Step 2: Convert to fraction form
7,240,984.36/9,992,235.18 = 4,341,974.92/x - Step 3: Cross multiply
7,240,984.36x = 9,992,235.18 × 4,341,974.92 - Step 4: Simplify right side
7,240,984.36x = 43,386,034,546,301.68 - Step 5: Solve for x
x = 43,386,034,546,301.68/7,240,984.36 - Step 6: Final answer
x = 5,991,731.56
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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.