Finding the Fourth Proportional to 39,861,225.49, 55,008,491.87 and 21,526,510.99
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Solution
The fourth proportional to 39,861,225.49, 55,008,491.87 and 21,526,510.99 is: 29,706,585.54
Step by Step Solution
- Step 1: Write the proportion equation
39,861,225.49 : 55,008,491.87 = 21,526,510.99 : x - Step 2: Convert to fraction form
39,861,225.49/55,008,491.87 = 21,526,510.99/x - Step 3: Cross multiply
39,861,225.49x = 55,008,491.87 × 21,526,510.99 - Step 4: Simplify right side
39,861,225.49x = 1,184,140,904,782,880.50 - Step 5: Solve for x
x = 1,184,140,904,782,880.50/39,861,225.49 - Step 6: Final answer
x = 29,706,585.54
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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.