Finding the Fourth Proportional to 20,257,020.54, 30,385,485.36 and 15,652,702.44
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Solution
The fourth proportional to 20,257,020.54, 30,385,485.36 and 15,652,702.44 is: 23,479,018.54
Step by Step Solution
- Step 1: Write the proportion equation
20,257,020.54 : 30,385,485.36 = 15,652,702.44 : x - Step 2: Convert to fraction form
20,257,020.54/30,385,485.36 = 15,652,702.44/x - Step 3: Cross multiply
20,257,020.54x = 30,385,485.36 × 15,652,702.44 - Step 4: Simplify right side
20,257,020.54x = 475,614,960,835,056.25 - Step 5: Solve for x
x = 475,614,960,835,056.25/20,257,020.54 - Step 6: Final answer
x = 23,479,018.54
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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.