Finding the Fourth Proportional to 6,117,839.52, 8,430,163.20 and 4,732,768.32
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Solution
The fourth proportional to 6,117,839.52, 8,430,163.20 and 4,732,768.32 is: 6,521,584.82
Step by Step Solution
- Step 1: Write the proportion equation
6,117,839.52 : 8,430,163.20 = 4,732,768.32 : x - Step 2: Convert to fraction form
6,117,839.52/8,430,163.20 = 4,732,768.32/x - Step 3: Cross multiply
6,117,839.52x = 8,430,163.20 × 4,732,768.32 - Step 4: Simplify right side
6,117,839.52x = 39,898,009,325,389.82 - Step 5: Solve for x
x = 39,898,009,325,389.82/6,117,839.52 - Step 6: Final answer
x = 6,521,584.82
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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.