Finding the Fourth Proportional to 34,381,887.35, 47,515,052.39 and 28,177,149.65
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Solution
The fourth proportional to 34,381,887.35, 47,515,052.39 and 28,177,149.65 is: 38,940,234.08
Step by Step Solution
- Step 1: Write the proportion equation
34,381,887.35 : 47,515,052.39 = 28,177,149.65 : x - Step 2: Convert to fraction form
34,381,887.35/47,515,052.39 = 28,177,149.65/x - Step 3: Cross multiply
34,381,887.35x = 47,515,052.39 × 28,177,149.65 - Step 4: Simplify right side
34,381,887.35x = 1,338,838,741,442,159 - Step 5: Solve for x
x = 1,338,838,741,442,159/34,381,887.35 - Step 6: Final answer
x = 38,940,234.08
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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.