Finding the Fourth Proportional to 18,155,458.30, 27,201,694.65 and 11,762,419.90
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Solution
The fourth proportional to 18,155,458.30, 27,201,694.65 and 11,762,419.90 is: 17,623,226.53
Step by Step Solution
- Step 1: Write the proportion equation
18,155,458.30 : 27,201,694.65 = 11,762,419.90 : x - Step 2: Convert to fraction form
18,155,458.30/27,201,694.65 = 11,762,419.90/x - Step 3: Cross multiply
18,155,458.30x = 27,201,694.65 × 11,762,419.90 - Step 4: Simplify right side
18,155,458.30x = 319,957,754,464,883.50 - Step 5: Solve for x
x = 319,957,754,464,883.50/18,155,458.30 - Step 6: Final answer
x = 17,623,226.53
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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.