Finding the Fourth Proportional to 208,744,713.05, 288,059,812.07 and 115,931,199.60
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Solution
The fourth proportional to 208,744,713.05, 288,059,812.07 and 115,931,199.60 is: 159,980,672.48
Step by Step Solution
- Step 1: Write the proportion equation
208,744,713.05 : 288,059,812.07 = 115,931,199.60 : x - Step 2: Convert to fraction form
208,744,713.05/288,059,812.07 = 115,931,199.60/x - Step 3: Cross multiply
208,744,713.05x = 288,059,812.07 × 115,931,199.60 - Step 4: Simplify right side
208,744,713.05x = 33,395,119,569,246,000 - Step 5: Solve for x
x = 33,395,119,569,246,000/208,744,713.05 - Step 6: Final answer
x = 159,980,672.48
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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.