Finding the Fourth Proportional to 52,159,600.20, 78,239,400.30 and 48,128,521.80
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Solution
The fourth proportional to 52,159,600.20, 78,239,400.30 and 48,128,521.80 is: 72,192,782.70
Step by Step Solution
- Step 1: Write the proportion equation
52,159,600.20 : 78,239,400.30 = 48,128,521.80 : x - Step 2: Convert to fraction form
52,159,600.20/78,239,400.30 = 48,128,521.80/x - Step 3: Cross multiply
52,159,600.20x = 78,239,400.30 × 48,128,521.80 - Step 4: Simplify right side
52,159,600.20x = 3,765,546,682,957,476 - Step 5: Solve for x
x = 3,765,546,682,957,476/52,159,600.20 - Step 6: Final answer
x = 72,192,782.70
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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.