Finding the Fourth Proportional to 14,685,017.09, 20,264,135.65 and 8,490,461.31
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Solution
The fourth proportional to 14,685,017.09, 20,264,135.65 and 8,490,461.31 is: 11,716,149.78
Step by Step Solution
- Step 1: Write the proportion equation
14,685,017.09 : 20,264,135.65 = 8,490,461.31 : x - Step 2: Convert to fraction form
14,685,017.09/20,264,135.65 = 8,490,461.31/x - Step 3: Cross multiply
14,685,017.09x = 20,264,135.65 × 8,490,461.31 - Step 4: Simplify right side
14,685,017.09x = 172,051,859,695,690.56 - Step 5: Solve for x
x = 172,051,859,695,690.56/14,685,017.09 - Step 6: Final answer
x = 11,716,149.78
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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.