Finding the Fourth Proportional to 128,884,027.80, 177,863,735.24 and 70,150,497.09
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Solution
The fourth proportional to 128,884,027.80, 177,863,735.24 and 70,150,497.09 is: 96,809,741.70
Step by Step Solution
- Step 1: Write the proportion equation
128,884,027.80 : 177,863,735.24 = 70,150,497.09 : x - Step 2: Convert to fraction form
128,884,027.80/177,863,735.24 = 70,150,497.09/x - Step 3: Cross multiply
128,884,027.80x = 177,863,735.24 × 70,150,497.09 - Step 4: Simplify right side
128,884,027.80x = 12,477,229,440,615,476 - Step 5: Solve for x
x = 12,477,229,440,615,476/128,884,027.80 - Step 6: Final answer
x = 96,809,741.70
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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.