Finding the Fourth Proportional to 412,202,502.30, 618,303,753.45 and 218,492,257.80
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Solution
The fourth proportional to 412,202,502.30, 618,303,753.45 and 218,492,257.80 is: 327,738,386.70
Step by Step Solution
- Step 1: Write the proportion equation
412,202,502.30 : 618,303,753.45 = 218,492,257.80 : x - Step 2: Convert to fraction form
412,202,502.30/618,303,753.45 = 218,492,257.80/x - Step 3: Cross multiply
412,202,502.30x = 618,303,753.45 × 218,492,257.80 - Step 4: Simplify right side
412,202,502.30x = 135,094,583,097,505,056 - Step 5: Solve for x
x = 135,094,583,097,505,056/412,202,502.30 - Step 6: Final answer
x = 327,738,386.70
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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.