Finding the Fourth Proportional to 7,780,326.30, 11,670,324.50 and 2,593,310.87
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Solution
The fourth proportional to 7,780,326.30, 11,670,324.50 and 2,593,310.87 is: 3,889,911.32
Step by Step Solution
- Step 1: Write the proportion equation
7,780,326.30 : 11,670,324.50 = 2,593,310.87 : x - Step 2: Convert to fraction form
7,780,326.30/11,670,324.50 = 2,593,310.87/x - Step 3: Cross multiply
7,780,326.30x = 11,670,324.50 × 2,593,310.87 - Step 4: Simplify right side
7,780,326.30x = 30,264,779,310,959.14 - Step 5: Solve for x
x = 30,264,779,310,959.14/7,780,326.30 - Step 6: Final answer
x = 3,889,911.32
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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.