Finding the Fourth Proportional to 225,986,317.20, 338,979,475.80 and 174,967,981.20
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Solution
The fourth proportional to 225,986,317.20, 338,979,475.80 and 174,967,981.20 is: 262,451,971.80
Step by Step Solution
- Step 1: Write the proportion equation
225,986,317.20 : 338,979,475.80 = 174,967,981.20 : x - Step 2: Convert to fraction form
225,986,317.20/338,979,475.80 = 174,967,981.20/x - Step 3: Cross multiply
225,986,317.20x = 338,979,475.80 × 174,967,981.20 - Step 4: Simplify right side
225,986,317.20x = 59,310,554,548,960,256 - Step 5: Solve for x
x = 59,310,554,548,960,256/225,986,317.20 - Step 6: Final answer
x = 262,451,971.80
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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.