Finding the Fourth Proportional to 201,793,487.43, 278,475,011.13 and 108,973,987.09
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Solution
The fourth proportional to 201,793,487.43, 278,475,011.13 and 108,973,987.09 is: 150,384,101.36
Step by Step Solution
- Step 1: Write the proportion equation
201,793,487.43 : 278,475,011.13 = 108,973,987.09 : x - Step 2: Convert to fraction form
201,793,487.43/278,475,011.13 = 108,973,987.09/x - Step 3: Cross multiply
201,793,487.43x = 278,475,011.13 × 108,973,987.09 - Step 4: Simplify right side
201,793,487.43x = 30,346,532,267,768,228 - Step 5: Solve for x
x = 30,346,532,267,768,228/201,793,487.43 - Step 6: Final answer
x = 150,384,101.36
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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.