Finding the Fourth Proportional to 290,621,427.53, 401,064,186.42 and 165,153,853.98
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Solution
The fourth proportional to 290,621,427.53, 401,064,186.42 and 165,153,853.98 is: 227,916,078.47
Step by Step Solution
- Step 1: Write the proportion equation
290,621,427.53 : 401,064,186.42 = 165,153,853.98 : x - Step 2: Convert to fraction form
290,621,427.53/401,064,186.42 = 165,153,853.98/x - Step 3: Cross multiply
290,621,427.53x = 401,064,186.42 × 165,153,853.98 - Step 4: Simplify right side
290,621,427.53x = 66,237,296,080,616,176 - Step 5: Solve for x
x = 66,237,296,080,616,176/290,621,427.53 - Step 6: Final answer
x = 227,916,078.47
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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.