Finding the Fourth Proportional to 167,121,029.78, 230,622,528.62 and 100,177,801.26
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Solution
The fourth proportional to 167,121,029.78, 230,622,528.62 and 100,177,801.26 is: 138,242,672.80
Step by Step Solution
- Step 1: Write the proportion equation
167,121,029.78 : 230,622,528.62 = 100,177,801.26 : x - Step 2: Convert to fraction form
167,121,029.78/230,622,528.62 = 100,177,801.26/x - Step 3: Cross multiply
167,121,029.78x = 230,622,528.62 × 100,177,801.26 - Step 4: Simplify right side
167,121,029.78x = 23,103,257,838,173,024 - Step 5: Solve for x
x = 23,103,257,838,173,024/167,121,029.78 - Step 6: Final answer
x = 138,242,672.80
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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.