Finding the Fourth Proportional to 163,145,119.09, 225,145,702.58 and 91,630,603.28
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Solution
The fourth proportional to 163,145,119.09, 225,145,702.58 and 91,630,603.28 is: 126,453,286.91
Step by Step Solution
- Step 1: Write the proportion equation
163,145,119.09 : 225,145,702.58 = 91,630,603.28 : x - Step 2: Convert to fraction form
163,145,119.09/225,145,702.58 = 91,630,603.28/x - Step 3: Cross multiply
163,145,119.09x = 225,145,702.58 × 91,630,603.28 - Step 4: Simplify right side
163,145,119.09x = 20,630,236,552,179,128 - Step 5: Solve for x
x = 20,630,236,552,179,128/163,145,119.09 - Step 6: Final answer
x = 126,453,286.91
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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.