Finding the Fourth Proportional to 7,339,322.18, 10,128,389.84 and 4,031,755.94
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Solution
The fourth proportional to 7,339,322.18, 10,128,389.84 and 4,031,755.94 is: 5,563,891.99
Step by Step Solution
- Step 1: Write the proportion equation
7,339,322.18 : 10,128,389.84 = 4,031,755.94 : x - Step 2: Convert to fraction form
7,339,322.18/10,128,389.84 = 4,031,755.94/x - Step 3: Cross multiply
7,339,322.18x = 10,128,389.84 × 4,031,755.94 - Step 4: Simplify right side
7,339,322.18x = 40,835,195,829,254.92 - Step 5: Solve for x
x = 40,835,195,829,254.92/7,339,322.18 - Step 6: Final answer
x = 5,563,891.99
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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.