Finding the Fourth Proportional to 39,903,639.85, 59,855,098.78 and 12,609,937.09
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Solution
The fourth proportional to 39,903,639.85, 59,855,098.78 and 12,609,937.09 is: 18,914,791.56
Step by Step Solution
- Step 1: Write the proportion equation
39,903,639.85 : 59,855,098.78 = 12,609,937.09 : x - Step 2: Convert to fraction form
39,903,639.85/59,855,098.78 = 12,609,937.09/x - Step 3: Cross multiply
39,903,639.85x = 59,855,098.78 × 12,609,937.09 - Step 4: Simplify right side
39,903,639.85x = 754,769,030,131,535.75 - Step 5: Solve for x
x = 754,769,030,131,535.75/39,903,639.85 - Step 6: Final answer
x = 18,914,791.56
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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.