Finding the Fourth Proportional to 106,319,639.20, 159,479,458.80 and 52,571,927.20
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Solution
The fourth proportional to 106,319,639.20, 159,479,458.80 and 52,571,927.20 is: 78,857,890.80
Step by Step Solution
- Step 1: Write the proportion equation
106,319,639.20 : 159,479,458.80 = 52,571,927.20 : x - Step 2: Convert to fraction form
106,319,639.20/159,479,458.80 = 52,571,927.20/x - Step 3: Cross multiply
106,319,639.20x = 159,479,458.80 × 52,571,927.20 - Step 4: Simplify right side
106,319,639.20x = 8,384,142,497,929,000 - Step 5: Solve for x
x = 8,384,142,497,929,000/106,319,639.20 - Step 6: Final answer
x = 78,857,890.80
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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.