Finding the Fourth Proportional to 420,944,668.29, 580,907,401.02 and 232,785,694.08
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Solution
The fourth proportional to 420,944,668.29, 580,907,401.02 and 232,785,694.08 is: 321,246,336.47
Step by Step Solution
- Step 1: Write the proportion equation
420,944,668.29 : 580,907,401.02 = 232,785,694.08 : x - Step 2: Convert to fraction form
420,944,668.29/580,907,401.02 = 232,785,694.08/x - Step 3: Cross multiply
420,944,668.29x = 580,907,401.02 × 232,785,694.08 - Step 4: Simplify right side
420,944,668.29x = 135,226,932,542,649,600 - Step 5: Solve for x
x = 135,226,932,542,649,600/420,944,668.29 - Step 6: Final answer
x = 321,246,336.47
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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.