Finding the Fourth Proportional to 4,747,357.76, 7,121,036.72 and 1,153,100.49
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Solution
The fourth proportional to 4,747,357.76, 7,121,036.72 and 1,153,100.49 is: 1,729,650.75
Step by Step Solution
- Step 1: Write the proportion equation
4,747,357.76 : 7,121,036.72 = 1,153,100.49 : x - Step 2: Convert to fraction form
4,747,357.76/7,121,036.72 = 1,153,100.49/x - Step 3: Cross multiply
4,747,357.76x = 7,121,036.72 × 1,153,100.49 - Step 4: Simplify right side
4,747,357.76x = 8,211,270,931,139.99 - Step 5: Solve for x
x = 8,211,270,931,139.99/4,747,357.76 - Step 6: Final answer
x = 1,729,650.75
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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.