Finding the Fourth Proportional to 128,704,262.96, 177,445,173.36 and 83,360,334.96
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Solution
The fourth proportional to 128,704,262.96, 177,445,173.36 and 83,360,334.96 is: 114,929,286.32
Step by Step Solution
- Step 1: Write the proportion equation
128,704,262.96 : 177,445,173.36 = 83,360,334.96 : x - Step 2: Convert to fraction form
128,704,262.96/177,445,173.36 = 83,360,334.96/x - Step 3: Cross multiply
128,704,262.96x = 177,445,173.36 × 83,360,334.96 - Step 4: Simplify right side
128,704,262.96x = 14,791,889,088,324,868 - Step 5: Solve for x
x = 14,791,889,088,324,868/128,704,262.96 - Step 6: Final answer
x = 114,929,286.32
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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.