Finding the Fourth Proportional to 201,793,486.43, 278,475,009.75 and 108,973,986.09
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Solution
The fourth proportional to 201,793,486.43, 278,475,009.75 and 108,973,986.09 is: 150,384,099.99
Step by Step Solution
- Step 1: Write the proportion equation
201,793,486.43 : 278,475,009.75 = 108,973,986.09 : x - Step 2: Convert to fraction form
201,793,486.43/278,475,009.75 = 108,973,986.09/x - Step 3: Cross multiply
201,793,486.43x = 278,475,009.75 × 108,973,986.09 - Step 4: Simplify right side
201,793,486.43x = 30,346,531,838,909,116 - Step 5: Solve for x
x = 30,346,531,838,909,116/201,793,486.43 - Step 6: Final answer
x = 150,384,099.99
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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.