Finding the Fourth Proportional to 13,527,253.60, 18,668,325.36 and 7,415,939.68
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Solution
The fourth proportional to 13,527,253.60, 18,668,325.36 and 7,415,939.68 is: 10,234,388.95
Step by Step Solution
- Step 1: Write the proportion equation
13,527,253.60 : 18,668,325.36 = 7,415,939.68 : x - Step 2: Convert to fraction form
13,527,253.60/18,668,325.36 = 7,415,939.68/x - Step 3: Cross multiply
13,527,253.60x = 18,668,325.36 × 7,415,939.68 - Step 4: Simplify right side
13,527,253.60x = 138,443,174,796,374.28 - Step 5: Solve for x
x = 138,443,174,796,374.28/13,527,253.60 - Step 6: Final answer
x = 10,234,388.95
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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.