Finding the Fourth Proportional to 11,391,935.76, 15,720,890.37 and 6,235,623.99
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Solution
The fourth proportional to 11,391,935.76, 15,720,890.37 and 6,235,623.99 is: 8,605,171.52
Step by Step Solution
- Step 1: Write the proportion equation
11,391,935.76 : 15,720,890.37 = 6,235,623.99 : x - Step 2: Convert to fraction form
11,391,935.76/15,720,890.37 = 6,235,623.99/x - Step 3: Cross multiply
11,391,935.76x = 15,720,890.37 × 6,235,623.99 - Step 4: Simplify right side
11,391,935.76x = 98,029,561,135,331.97 - Step 5: Solve for x
x = 98,029,561,135,331.97/11,391,935.76 - Step 6: Final answer
x = 8,605,171.52
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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.