Finding the Fourth Proportional to 293,642,611.55, 405,237,210.99 and 161,493,828.49
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Solution
The fourth proportional to 293,642,611.55, 405,237,210.99 and 161,493,828.49 is: 222,867,206.85
Step by Step Solution
- Step 1: Write the proportion equation
293,642,611.55 : 405,237,210.99 = 161,493,828.49 : x - Step 2: Convert to fraction form
293,642,611.55/405,237,210.99 = 161,493,828.49/x - Step 3: Cross multiply
293,642,611.55x = 405,237,210.99 × 161,493,828.49 - Step 4: Simplify right side
293,642,611.55x = 65,443,308,649,385,008 - Step 5: Solve for x
x = 65,443,308,649,385,008/293,642,611.55 - Step 6: Final answer
x = 222,867,206.85
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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.