Finding the Fourth Proportional to 13,534,353.54, 18,678,589.14 and 7,423,963.02
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Solution
The fourth proportional to 13,534,353.54, 18,678,589.14 and 7,423,963.02 is: 10,245,716.92
Step by Step Solution
- Step 1: Write the proportion equation
13,534,353.54 : 18,678,589.14 = 7,423,963.02 : x - Step 2: Convert to fraction form
13,534,353.54/18,678,589.14 = 7,423,963.02/x - Step 3: Cross multiply
13,534,353.54x = 18,678,589.14 × 7,423,963.02 - Step 4: Simplify right side
13,534,353.54x = 138,669,155,041,133.59 - Step 5: Solve for x
x = 138,669,155,041,133.59/13,534,353.54 - Step 6: Final answer
x = 10,245,716.92
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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.