Finding the Fourth Proportional to 125,250,396.08, 172,851,365.95 and 78,235,305.26
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Solution
The fourth proportional to 125,250,396.08, 172,851,365.95 and 78,235,305.26 is: 107,968,356.21
Step by Step Solution
- Step 1: Write the proportion equation
125,250,396.08 : 172,851,365.95 = 78,235,305.26 : x - Step 2: Convert to fraction form
125,250,396.08/172,851,365.95 = 78,235,305.26/x - Step 3: Cross multiply
125,250,396.08x = 172,851,365.95 × 78,235,305.26 - Step 4: Simplify right side
125,250,396.08x = 13,523,079,378,646,374 - Step 5: Solve for x
x = 13,523,079,378,646,374/125,250,396.08 - Step 6: Final answer
x = 107,968,356.21
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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.