Finding the Fourth Proportional to 262,221,377.76, 361,874,065.96 and 143,150,318.99
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Solution
The fourth proportional to 262,221,377.76, 361,874,065.96 and 143,150,318.99 is: 197,552,115.77
Step by Step Solution
- Step 1: Write the proportion equation
262,221,377.76 : 361,874,065.96 = 143,150,318.99 : x - Step 2: Convert to fraction form
262,221,377.76/361,874,065.96 = 143,150,318.99/x - Step 3: Cross multiply
262,221,377.76x = 361,874,065.96 × 143,150,318.99 - Step 4: Simplify right side
262,221,377.76x = 51,802,387,976,108,904 - Step 5: Solve for x
x = 51,802,387,976,108,904/262,221,377.76 - Step 6: Final answer
x = 197,552,115.77
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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.