Finding the Fourth Proportional to 18,125,887.74, 27,185,215.77 and 11,629,739.58
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Solution
The fourth proportional to 18,125,887.74, 27,185,215.77 and 11,629,739.58 is: 17,442,289.41
Step by Step Solution
- Step 1: Write the proportion equation
18,125,887.74 : 27,185,215.77 = 11,629,739.58 : x - Step 2: Convert to fraction form
18,125,887.74/27,185,215.77 = 11,629,739.58/x - Step 3: Cross multiply
18,125,887.74x = 27,185,215.77 × 11,629,739.58 - Step 4: Simplify right side
18,125,887.74x = 316,156,979,831,209.19 - Step 5: Solve for x
x = 316,156,979,831,209.19/18,125,887.74 - Step 6: Final answer
x = 17,442,289.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.