Finding the Fourth Proportional to 51,361,872.15, 70,879,377.46 and 28,157,163.06
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Solution
The fourth proportional to 51,361,872.15, 70,879,377.46 and 28,157,163.06 is: 38,856,881.68
Step by Step Solution
- Step 1: Write the proportion equation
51,361,872.15 : 70,879,377.46 = 28,157,163.06 : x - Step 2: Convert to fraction form
51,361,872.15/70,879,377.46 = 28,157,163.06/x - Step 3: Cross multiply
51,361,872.15x = 70,879,377.46 × 28,157,163.06 - Step 4: Simplify right side
51,361,872.15x = 1,995,762,188,980,707.75 - Step 5: Solve for x
x = 1,995,762,188,980,707.75/51,361,872.15 - Step 6: Final answer
x = 38,856,881.68
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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.