Finding the Fourth Proportional to 18,444,851.20, 27,643,657.20 and 14,163,798.70
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Solution
The fourth proportional to 18,444,851.20, 27,643,657.20 and 14,163,798.70 is: 21,227,560.56
Step by Step Solution
- Step 1: Write the proportion equation
18,444,851.20 : 27,643,657.20 = 14,163,798.70 : x - Step 2: Convert to fraction form
18,444,851.20/27,643,657.20 = 14,163,798.70/x - Step 3: Cross multiply
18,444,851.20x = 27,643,657.20 × 14,163,798.70 - Step 4: Simplify right side
18,444,851.20x = 391,539,195,912,605.62 - Step 5: Solve for x
x = 391,539,195,912,605.62/18,444,851.20 - Step 6: Final answer
x = 21,227,560.56
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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.