Finding the Fourth Proportional to 11,115,780.93, 15,341,388.49 and 6,405,260.02
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Solution
The fourth proportional to 11,115,780.93, 15,341,388.49 and 6,405,260.02 is: 8,840,187.02
Step by Step Solution
- Step 1: Write the proportion equation
11,115,780.93 : 15,341,388.49 = 6,405,260.02 : x - Step 2: Convert to fraction form
11,115,780.93/15,341,388.49 = 6,405,260.02/x - Step 3: Cross multiply
11,115,780.93x = 15,341,388.49 × 6,405,260.02 - Step 4: Simplify right side
11,115,780.93x = 98,265,582,315,938.28 - Step 5: Solve for x
x = 98,265,582,315,938.28/11,115,780.93 - Step 6: Final answer
x = 8,840,187.02
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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.