Finding the Fourth Proportional to 311,673,669.60, 467,202,137.40 and 147,623,081.70
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Solution
The fourth proportional to 311,673,669.60, 467,202,137.40 and 147,623,081.70 is: 221,288,565.66
Step by Step Solution
- Step 1: Write the proportion equation
311,673,669.60 : 467,202,137.40 = 147,623,081.70 : x - Step 2: Convert to fraction form
311,673,669.60/467,202,137.40 = 147,623,081.70/x - Step 3: Cross multiply
311,673,669.60x = 467,202,137.40 × 147,623,081.70 - Step 4: Simplify right side
311,673,669.60x = 68,969,819,299,814,816 - Step 5: Solve for x
x = 68,969,819,299,814,816/311,673,669.60 - Step 6: Final answer
x = 221,288,565.66
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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.