Finding the Fourth Proportional to 431,811,072.29, 647,716,583.84 and 120,964,710.49
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Solution
The fourth proportional to 431,811,072.29, 647,716,583.84 and 120,964,710.49 is: 181,447,058.84
Step by Step Solution
- Step 1: Write the proportion equation
431,811,072.29 : 647,716,583.84 = 120,964,710.49 : x - Step 2: Convert to fraction form
431,811,072.29/647,716,583.84 = 120,964,710.49/x - Step 3: Cross multiply
431,811,072.29x = 647,716,583.84 × 120,964,710.49 - Step 4: Simplify right side
431,811,072.29x = 78,350,849,041,553,296 - Step 5: Solve for x
x = 78,350,849,041,553,296/431,811,072.29 - Step 6: Final answer
x = 181,447,058.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.