Finding the Fourth Proportional to 118,330,232.64, 163,292,588.37 and 66,119,697.42
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Solution
The fourth proportional to 118,330,232.64, 163,292,588.37 and 66,119,697.42 is: 91,243,431.99
Step by Step Solution
- Step 1: Write the proportion equation
118,330,232.64 : 163,292,588.37 = 66,119,697.42 : x - Step 2: Convert to fraction form
118,330,232.64/163,292,588.37 = 66,119,697.42/x - Step 3: Cross multiply
118,330,232.64x = 163,292,588.37 × 66,119,697.42 - Step 4: Simplify right side
118,330,232.64x = 10,796,856,533,953,012 - Step 5: Solve for x
x = 10,796,856,533,953,012/118,330,232.64 - Step 6: Final answer
x = 91,243,431.99
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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.