Finding the Fourth Proportional to 208,744,708.53, 288,059,805.87 and 115,931,195.09
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Solution
The fourth proportional to 208,744,708.53, 288,059,805.87 and 115,931,195.09 is: 159,980,666.27
Step by Step Solution
- Step 1: Write the proportion equation
208,744,708.53 : 288,059,805.87 = 115,931,195.09 : x - Step 2: Convert to fraction form
208,744,708.53/288,059,805.87 = 115,931,195.09/x - Step 3: Cross multiply
208,744,708.53x = 288,059,805.87 × 115,931,195.09 - Step 4: Simplify right side
208,744,708.53x = 33,395,117,551,106,524 - Step 5: Solve for x
x = 33,395,117,551,106,524/208,744,708.53 - Step 6: Final answer
x = 159,980,666.27
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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.