Finding the Fourth Proportional to 276,905,532.68, 382,247,296.14 and 172,535,170.39
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Solution
The fourth proportional to 276,905,532.68, 382,247,296.14 and 172,535,170.39 is: 238,171,847.74
Step by Step Solution
- Step 1: Write the proportion equation
276,905,532.68 : 382,247,296.14 = 172,535,170.39 : x - Step 2: Convert to fraction form
276,905,532.68/382,247,296.14 = 172,535,170.39/x - Step 3: Cross multiply
276,905,532.68x = 382,247,296.14 × 172,535,170.39 - Step 4: Simplify right side
276,905,532.68x = 65,951,102,368,720,448 - Step 5: Solve for x
x = 65,951,102,368,720,448/276,905,532.68 - Step 6: Final answer
x = 238,171,847.74
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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.