Finding the Fourth Proportional to 155,305,193.40, 214,325,653.59 and 85,695,058.08
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Solution
The fourth proportional to 155,305,193.40, 214,325,653.59 and 85,695,058.08 is: 118,261,655.84
Step by Step Solution
- Step 1: Write the proportion equation
155,305,193.40 : 214,325,653.59 = 85,695,058.08 : x - Step 2: Convert to fraction form
155,305,193.40/214,325,653.59 = 85,695,058.08/x - Step 3: Cross multiply
155,305,193.40x = 214,325,653.59 × 85,695,058.08 - Step 4: Simplify right side
155,305,193.40x = 18,366,649,332,429,012 - Step 5: Solve for x
x = 18,366,649,332,429,012/155,305,193.40 - Step 6: Final answer
x = 118,261,655.84
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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.