Finding the Fourth Proportional to 201,814,535.20, 302,721,802.80 and 99,777,863.20
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Solution
The fourth proportional to 201,814,535.20, 302,721,802.80 and 99,777,863.20 is: 149,666,794.80
Step by Step Solution
- Step 1: Write the proportion equation
201,814,535.20 : 302,721,802.80 = 99,777,863.20 : x - Step 2: Convert to fraction form
201,814,535.20/302,721,802.80 = 99,777,863.20/x - Step 3: Cross multiply
201,814,535.20x = 302,721,802.80 × 99,777,863.20 - Step 4: Simplify right side
201,814,535.20x = 30,204,934,627,435,780 - Step 5: Solve for x
x = 30,204,934,627,435,780/201,814,535.20 - Step 6: Final answer
x = 149,666,794.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.