Finding the Fourth Proportional to 53,805,835.20, 80,921,329.20 and 48,278,848.80
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Solution
The fourth proportional to 53,805,835.20, 80,921,329.20 and 48,278,848.80 is: 72,609,013.55
Step by Step Solution
- Step 1: Write the proportion equation
53,805,835.20 : 80,921,329.20 = 48,278,848.80 : x - Step 2: Convert to fraction form
53,805,835.20/80,921,329.20 = 48,278,848.80/x - Step 3: Cross multiply
53,805,835.20x = 80,921,329.20 × 48,278,848.80 - Step 4: Simplify right side
53,805,835.20x = 3,906,788,617,141,825 - Step 5: Solve for x
x = 3,906,788,617,141,825/53,805,835.20 - Step 6: Final answer
x = 72,609,013.55
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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.