Finding the Fourth Proportional to 21,366,041.01, 29,468,867.34 and 18,390,807.73
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Solution
The fourth proportional to 21,366,041.01, 29,468,867.34 and 18,390,807.73 is: 25,365,310.92
Step by Step Solution
- Step 1: Write the proportion equation
21,366,041.01 : 29,468,867.34 = 18,390,807.73 : x - Step 2: Convert to fraction form
21,366,041.01/29,468,867.34 = 18,390,807.73/x - Step 3: Cross multiply
21,366,041.01x = 29,468,867.34 × 18,390,807.73 - Step 4: Simplify right side
21,366,041.01x = 541,956,273,270,816.56 - Step 5: Solve for x
x = 541,956,273,270,816.56/21,366,041.01 - Step 6: Final answer
x = 25,365,310.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.