Finding the Fourth Proportional to 385,704,925.44, 532,276,706.88 and 209,494,623.36
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Solution
The fourth proportional to 385,704,925.44, 532,276,706.88 and 209,494,623.36 is: 289,104,703.82
Step by Step Solution
- Step 1: Write the proportion equation
385,704,925.44 : 532,276,706.88 = 209,494,623.36 : x - Step 2: Convert to fraction form
385,704,925.44/532,276,706.88 = 209,494,623.36/x - Step 3: Cross multiply
385,704,925.44x = 532,276,706.88 × 209,494,623.36 - Step 4: Simplify right side
385,704,925.44x = 111,509,108,231,126,720 - Step 5: Solve for x
x = 111,509,108,231,126,720/385,704,925.44 - Step 6: Final answer
x = 289,104,703.82
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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.