Finding the Fourth Proportional to 15,279,697.05, 21,091,466.67 and 9,084,728.99
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Solution
The fourth proportional to 15,279,697.05, 21,091,466.67 and 9,084,728.99 is: 12,540,187.02
Step by Step Solution
- Step 1: Write the proportion equation
15,279,697.05 : 21,091,466.67 = 9,084,728.99 : x - Step 2: Convert to fraction form
15,279,697.05/21,091,466.67 = 9,084,728.99/x - Step 3: Cross multiply
15,279,697.05x = 21,091,466.67 × 9,084,728.99 - Step 4: Simplify right side
15,279,697.05x = 191,610,258,615,623.06 - Step 5: Solve for x
x = 191,610,258,615,623.06/15,279,697.05 - Step 6: Final answer
x = 12,540,187.02
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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.