Finding the Fourth Proportional to 21,031,834.26, 29,024,018.74 and 11,374,042.26
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Solution
The fourth proportional to 21,031,834.26, 29,024,018.74 and 11,374,042.26 is: 15,696,225.62
Step by Step Solution
- Step 1: Write the proportion equation
21,031,834.26 : 29,024,018.74 = 11,374,042.26 : x - Step 2: Convert to fraction form
21,031,834.26/29,024,018.74 = 11,374,042.26/x - Step 3: Cross multiply
21,031,834.26x = 29,024,018.74 × 11,374,042.26 - Step 4: Simplify right side
21,031,834.26x = 330,120,415,703,791.94 - Step 5: Solve for x
x = 330,120,415,703,791.94/21,031,834.26 - Step 6: Final answer
x = 15,696,225.62
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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.