Finding the Fourth Proportional to 3,935,071.53, 5,430,786.12 and 2,303,379.99
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Solution
The fourth proportional to 3,935,071.53, 5,430,786.12 and 2,303,379.99 is: 3,178,891.15
Step by Step Solution
- Step 1: Write the proportion equation
3,935,071.53 : 5,430,786.12 = 2,303,379.99 : x - Step 2: Convert to fraction form
3,935,071.53/5,430,786.12 = 2,303,379.99/x - Step 3: Cross multiply
3,935,071.53x = 5,430,786.12 × 2,303,379.99 - Step 4: Simplify right side
3,935,071.53x = 12,509,164,078,777.74 - Step 5: Solve for x
x = 12,509,164,078,777.74/3,935,071.53 - Step 6: Final answer
x = 3,178,891.15
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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.