Finding the Fourth Proportional to 431,136,415.80, 646,704,623.70 and 158,471,753.40
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Solution
The fourth proportional to 431,136,415.80, 646,704,623.70 and 158,471,753.40 is: 237,707,630.10
Step by Step Solution
- Step 1: Write the proportion equation
431,136,415.80 : 646,704,623.70 = 158,471,753.40 : x - Step 2: Convert to fraction form
431,136,415.80/646,704,623.70 = 158,471,753.40/x - Step 3: Cross multiply
431,136,415.80x = 646,704,623.70 × 158,471,753.40 - Step 4: Simplify right side
431,136,415.80x = 102,484,415,649,626,208 - Step 5: Solve for x
x = 102,484,415,649,626,208/431,136,415.80 - Step 6: Final answer
x = 237,707,630.10
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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.