Finding the Fourth Proportional to 5,385,938.58, 8,071,927.56 and 2,187,349.02
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Solution
The fourth proportional to 5,385,938.58, 8,071,927.56 and 2,187,349.02 is: 3,278,188.67
Step by Step Solution
- Step 1: Write the proportion equation
5,385,938.58 : 8,071,927.56 = 2,187,349.02 : x - Step 2: Convert to fraction form
5,385,938.58/8,071,927.56 = 2,187,349.02/x - Step 3: Cross multiply
5,385,938.58x = 8,071,927.56 × 2,187,349.02 - Step 4: Simplify right side
5,385,938.58x = 17,656,122,837,876.99 - Step 5: Solve for x
x = 17,656,122,837,876.99/5,385,938.58 - Step 6: Final answer
x = 3,278,188.67
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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.