Finding the Fourth Proportional to 7,929,416.80, 11,894,135.63 and 2,172,201.61
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Solution
The fourth proportional to 7,929,416.80, 11,894,135.63 and 2,172,201.61 is: 3,258,305.28
Step by Step Solution
- Step 1: Write the proportion equation
7,929,416.80 : 11,894,135.63 = 2,172,201.61 : x - Step 2: Convert to fraction form
7,929,416.80/11,894,135.63 = 2,172,201.61/x - Step 3: Cross multiply
7,929,416.80x = 11,894,135.63 × 2,172,201.61 - Step 4: Simplify right side
7,929,416.80x = 25,836,460,592,421.61 - Step 5: Solve for x
x = 25,836,460,592,421.61/7,929,416.80 - Step 6: Final answer
x = 3,258,305.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.