Finding the Fourth Proportional to 18,610,890.12, 27,917,662.10 and 4,963,959.09
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Solution
The fourth proportional to 18,610,890.12, 27,917,662.10 and 4,963,959.09 is: 7,446,292.55
Step by Step Solution
- Step 1: Write the proportion equation
18,610,890.12 : 27,917,662.10 = 4,963,959.09 : x - Step 2: Convert to fraction form
18,610,890.12/27,917,662.10 = 4,963,959.09/x - Step 3: Cross multiply
18,610,890.12x = 27,917,662.10 × 4,963,959.09 - Step 4: Simplify right side
18,610,890.12x = 138,582,132,528,023.69 - Step 5: Solve for x
x = 138,582,132,528,023.69/18,610,890.12 - Step 6: Final answer
x = 7,446,292.55
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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.