Finding the Fourth Proportional to 7,796,386.40, 11,694,579.60 and 2,748,207.20
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Solution
The fourth proportional to 7,796,386.40, 11,694,579.60 and 2,748,207.20 is: 4,122,310.80
Step by Step Solution
- Step 1: Write the proportion equation
7,796,386.40 : 11,694,579.60 = 2,748,207.20 : x - Step 2: Convert to fraction form
7,796,386.40/11,694,579.60 = 2,748,207.20/x - Step 3: Cross multiply
7,796,386.40x = 11,694,579.60 × 2,748,207.20 - Step 4: Simplify right side
7,796,386.40x = 32,139,127,857,693.12 - Step 5: Solve for x
x = 32,139,127,857,693.12/7,796,386.40 - Step 6: Final answer
x = 4,122,310.80
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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.