Finding the Fourth Proportional to 29,369,943.12, 40,479,217.64 and 21,512,762.63
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Solution
The fourth proportional to 29,369,943.12, 40,479,217.64 and 21,512,762.63 is: 29,650,033.61
Step by Step Solution
- Step 1: Write the proportion equation
29,369,943.12 : 40,479,217.64 = 21,512,762.63 : x - Step 2: Convert to fraction form
29,369,943.12/40,479,217.64 = 21,512,762.63/x - Step 3: Cross multiply
29,369,943.12x = 40,479,217.64 × 21,512,762.63 - Step 4: Simplify right side
29,369,943.12x = 870,819,800,537,428.75 - Step 5: Solve for x
x = 870,819,800,537,428.75/29,369,943.12 - Step 6: Final answer
x = 29,650,033.61
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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.