Finding the Fourth Proportional to 38,086,720.80, 57,122,644.70 and 12,172,070.70
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Solution
The fourth proportional to 38,086,720.80, 57,122,644.70 and 12,172,070.70 is: 18,255,729.43
Step by Step Solution
- Step 1: Write the proportion equation
38,086,720.80 : 57,122,644.70 = 12,172,070.70 : x - Step 2: Convert to fraction form
38,086,720.80/57,122,644.70 = 12,172,070.70/x - Step 3: Cross multiply
38,086,720.80x = 57,122,644.70 × 12,172,070.70 - Step 4: Simplify right side
38,086,720.80x = 695,300,869,859,380.25 - Step 5: Solve for x
x = 695,300,869,859,380.25/38,086,720.80 - Step 6: Final answer
x = 18,255,729.43
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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.