Finding the Fourth Proportional to 120,236,889.60, 165,927,224.88 and 65,232,745.92
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Solution
The fourth proportional to 120,236,889.60, 165,927,224.88 and 65,232,745.92 is: 90,021,361.48
Step by Step Solution
- Step 1: Write the proportion equation
120,236,889.60 : 165,927,224.88 = 65,232,745.92 : x - Step 2: Convert to fraction form
120,236,889.60/165,927,224.88 = 65,232,745.92/x - Step 3: Cross multiply
120,236,889.60x = 165,927,224.88 × 65,232,745.92 - Step 4: Simplify right side
120,236,889.60x = 10,823,888,501,807,742 - Step 5: Solve for x
x = 10,823,888,501,807,742/120,236,889.60 - Step 6: Final answer
x = 90,021,361.48
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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.