Finding the Fourth Proportional to 39,366,983.80, 59,050,475.70 and 12,440,639.80
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Solution
The fourth proportional to 39,366,983.80, 59,050,475.70 and 12,440,639.80 is: 18,660,959.70
Step by Step Solution
- Step 1: Write the proportion equation
39,366,983.80 : 59,050,475.70 = 12,440,639.80 : x - Step 2: Convert to fraction form
39,366,983.80/59,050,475.70 = 12,440,639.80/x - Step 3: Cross multiply
39,366,983.80x = 59,050,475.70 × 12,440,639.80 - Step 4: Simplify right side
39,366,983.80x = 734,625,698,202,353 - Step 5: Solve for x
x = 734,625,698,202,353/39,366,983.80 - Step 6: Final answer
x = 18,660,959.70
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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.