Finding the Fourth Proportional to 19,559,815.80, 29,350,221.30 and 8,201,412.60
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Solution
The fourth proportional to 19,559,815.80, 29,350,221.30 and 8,201,412.60 is: 12,306,520.53
Step by Step Solution
- Step 1: Write the proportion equation
19,559,815.80 : 29,350,221.30 = 8,201,412.60 : x - Step 2: Convert to fraction form
19,559,815.80/29,350,221.30 = 8,201,412.60/x - Step 3: Cross multiply
19,559,815.80x = 29,350,221.30 × 8,201,412.60 - Step 4: Simplify right side
19,559,815.80x = 240,713,274,782,608.38 - Step 5: Solve for x
x = 240,713,274,782,608.38/19,559,815.80 - Step 6: Final answer
x = 12,306,520.53
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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.