Finding the Fourth Proportional to 295,827,720.40, 408,227,316.48 and 161,862,737.20
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Solution
The fourth proportional to 295,827,720.40, 408,227,316.48 and 161,862,737.20 is: 223,362,404.16
Step by Step Solution
- Step 1: Write the proportion equation
295,827,720.40 : 408,227,316.48 = 161,862,737.20 : x - Step 2: Convert to fraction form
295,827,720.40/408,227,316.48 = 161,862,737.20/x - Step 3: Cross multiply
295,827,720.40x = 408,227,316.48 × 161,862,737.20 - Step 4: Simplify right side
295,827,720.40x = 66,076,790,845,263,464 - Step 5: Solve for x
x = 66,076,790,845,263,464/295,827,720.40 - Step 6: Final answer
x = 223,362,404.16
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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.