Finding the Fourth Proportional to 15,036,393.99, 20,750,232.87 and 8,160,876.06
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Solution
The fourth proportional to 15,036,393.99, 20,750,232.87 and 8,160,876.06 is: 11,262,013.94
Step by Step Solution
- Step 1: Write the proportion equation
15,036,393.99 : 20,750,232.87 = 8,160,876.06 : x - Step 2: Convert to fraction form
15,036,393.99/20,750,232.87 = 8,160,876.06/x - Step 3: Cross multiply
15,036,393.99x = 20,750,232.87 × 8,160,876.06 - Step 4: Simplify right side
15,036,393.99x = 169,340,078,668,208.09 - Step 5: Solve for x
x = 169,340,078,668,208.09/15,036,393.99 - Step 6: Final answer
x = 11,262,013.94
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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.