Finding the Fourth Proportional to 38,639,181.80, 57,958,772.70 and 20,723,277.80
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Solution
The fourth proportional to 38,639,181.80, 57,958,772.70 and 20,723,277.80 is: 31,084,916.70
Step by Step Solution
- Step 1: Write the proportion equation
38,639,181.80 : 57,958,772.70 = 20,723,277.80 : x - Step 2: Convert to fraction form
38,639,181.80/57,958,772.70 = 20,723,277.80/x - Step 3: Cross multiply
38,639,181.80x = 57,958,772.70 × 20,723,277.80 - Step 4: Simplify right side
38,639,181.80x = 1,201,095,747,609,156.25 - Step 5: Solve for x
x = 1,201,095,747,609,156.25/38,639,181.80 - Step 6: Final answer
x = 31,084,916.70
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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.