Finding the Fourth Proportional to 314,929,367.20, 472,394,050.80 and 161,874,359.20
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Solution
The fourth proportional to 314,929,367.20, 472,394,050.80 and 161,874,359.20 is: 242,811,538.80
Step by Step Solution
- Step 1: Write the proportion equation
314,929,367.20 : 472,394,050.80 = 161,874,359.20 : x - Step 2: Convert to fraction form
314,929,367.20/472,394,050.80 = 161,874,359.20/x - Step 3: Cross multiply
314,929,367.20x = 472,394,050.80 × 161,874,359.20 - Step 4: Simplify right side
314,929,367.20x = 76,468,484,263,142,240 - Step 5: Solve for x
x = 76,468,484,263,142,240/314,929,367.20 - Step 6: Final answer
x = 242,811,538.80
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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.