Finding the Fourth Proportional to 420,944,668.19, 580,907,400.93 and 232,785,693.99
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Solution
The fourth proportional to 420,944,668.19, 580,907,400.93 and 232,785,693.99 is: 321,246,336.36
Step by Step Solution
- Step 1: Write the proportion equation
420,944,668.19 : 580,907,400.93 = 232,785,693.99 : x - Step 2: Convert to fraction form
420,944,668.19/580,907,400.93 = 232,785,693.99/x - Step 3: Cross multiply
420,944,668.19x = 580,907,400.93 × 232,785,693.99 - Step 4: Simplify right side
420,944,668.19x = 135,226,932,465,348,752 - Step 5: Solve for x
x = 135,226,932,465,348,752/420,944,668.19 - Step 6: Final answer
x = 321,246,336.36
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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.