Finding the Fourth Proportional to 39,345,516.84, 54,296,707.68 and 21,941,881.68
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Solution
The fourth proportional to 39,345,516.84, 54,296,707.68 and 21,941,881.68 is: 30,279,737.85
Step by Step Solution
- Step 1: Write the proportion equation
39,345,516.84 : 54,296,707.68 = 21,941,881.68 : x - Step 2: Convert to fraction form
39,345,516.84/54,296,707.68 = 21,941,881.68/x - Step 3: Cross multiply
39,345,516.84x = 54,296,707.68 × 21,941,881.68 - Step 4: Simplify right side
39,345,516.84x = 1,191,371,935,528,107.25 - Step 5: Solve for x
x = 1,191,371,935,528,107.25/39,345,516.84 - Step 6: Final answer
x = 30,279,737.85
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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.