Finding the Fourth Proportional to 15,279,699.05, 21,091,469.43 and 9,084,730.99
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Solution
The fourth proportional to 15,279,699.05, 21,091,469.43 and 9,084,730.99 is: 12,540,189.79
Step by Step Solution
- Step 1: Write the proportion equation
15,279,699.05 : 21,091,469.43 = 9,084,730.99 : x - Step 2: Convert to fraction form
15,279,699.05/21,091,469.43 = 9,084,730.99/x - Step 3: Cross multiply
15,279,699.05x = 21,091,469.43 × 9,084,730.99 - Step 4: Simplify right side
15,279,699.05x = 191,610,325,955,358.62 - Step 5: Solve for x
x = 191,610,325,955,358.62/15,279,699.05 - Step 6: Final answer
x = 12,540,189.79
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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.