Finding the Fourth Proportional to 313,666,541.20, 470,499,811.80 and 299,557,766.80
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Solution
The fourth proportional to 313,666,541.20, 470,499,811.80 and 299,557,766.80 is: 449,336,650.20
Step by Step Solution
- Step 1: Write the proportion equation
313,666,541.20 : 470,499,811.80 = 299,557,766.80 : x - Step 2: Convert to fraction form
313,666,541.20/470,499,811.80 = 299,557,766.80/x - Step 3: Cross multiply
313,666,541.20x = 470,499,811.80 × 299,557,766.80 - Step 4: Simplify right side
313,666,541.20x = 140,941,872,902,628,304 - Step 5: Solve for x
x = 140,941,872,902,628,304/313,666,541.20 - Step 6: Final answer
x = 449,336,650.20
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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.