Finding the Fourth Proportional to 10,120,599.20, 13,966,584.36 and 5,536,997.12
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Solution
The fourth proportional to 10,120,599.20, 13,966,584.36 and 5,536,997.12 is: 7,641,142.17
Step by Step Solution
- Step 1: Write the proportion equation
10,120,599.20 : 13,966,584.36 = 5,536,997.12 : x - Step 2: Convert to fraction form
10,120,599.20/13,966,584.36 = 5,536,997.12/x - Step 3: Cross multiply
10,120,599.20x = 13,966,584.36 × 5,536,997.12 - Step 4: Simplify right side
10,120,599.20x = 77,332,937,377,557.05 - Step 5: Solve for x
x = 77,332,937,377,557.05/10,120,599.20 - Step 6: Final answer
x = 7,641,142.17
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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.