Finding the Fourth Proportional to 216,554,491.20, 324,831,736.80 and 107,396,509.80
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Solution
The fourth proportional to 216,554,491.20, 324,831,736.80 and 107,396,509.80 is: 161,094,764.70
Step by Step Solution
- Step 1: Write the proportion equation
216,554,491.20 : 324,831,736.80 = 107,396,509.80 : x - Step 2: Convert to fraction form
216,554,491.20/324,831,736.80 = 107,396,509.80/x - Step 3: Cross multiply
216,554,491.20x = 324,831,736.80 × 107,396,509.80 - Step 4: Simplify right side
216,554,491.20x = 34,885,794,804,592,220 - Step 5: Solve for x
x = 34,885,794,804,592,220/216,554,491.20 - Step 6: Final answer
x = 161,094,764.70
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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.