Finding the Fourth Proportional to 367,975,231.80, 551,962,847.70 and 313,261,740.60
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Solution
The fourth proportional to 367,975,231.80, 551,962,847.70 and 313,261,740.60 is: 469,892,610.90
Step by Step Solution
- Step 1: Write the proportion equation
367,975,231.80 : 551,962,847.70 = 313,261,740.60 : x - Step 2: Convert to fraction form
367,975,231.80/551,962,847.70 = 313,261,740.60/x - Step 3: Cross multiply
367,975,231.80x = 551,962,847.70 × 313,261,740.60 - Step 4: Simplify right side
367,975,231.80x = 172,908,842,417,034,720 - Step 5: Solve for x
x = 172,908,842,417,034,720/367,975,231.80 - Step 6: Final answer
x = 469,892,610.90
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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.