Finding the Fourth Proportional to 30,834,942.76, 46,234,486.21 and 11,667,178.09
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Solution
The fourth proportional to 30,834,942.76, 46,234,486.21 and 11,667,178.09 is: 17,493,983.65
Step by Step Solution
- Step 1: Write the proportion equation
30,834,942.76 : 46,234,486.21 = 11,667,178.09 : x - Step 2: Convert to fraction form
30,834,942.76/46,234,486.21 = 11,667,178.09/x - Step 3: Cross multiply
30,834,942.76x = 46,234,486.21 × 11,667,178.09 - Step 4: Simplify right side
30,834,942.76x = 539,425,984,562,220.31 - Step 5: Solve for x
x = 539,425,984,562,220.31/30,834,942.76 - Step 6: Final answer
x = 17,493,983.65
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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.