Finding the Fourth Proportional to 38,639,923.80, 57,959,885.70 and 18,484,531.80
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Solution
The fourth proportional to 38,639,923.80, 57,959,885.70 and 18,484,531.80 is: 27,726,797.70
Step by Step Solution
- Step 1: Write the proportion equation
38,639,923.80 : 57,959,885.70 = 18,484,531.80 : x - Step 2: Convert to fraction form
38,639,923.80/57,959,885.70 = 18,484,531.80/x - Step 3: Cross multiply
38,639,923.80x = 57,959,885.70 × 18,484,531.80 - Step 4: Simplify right side
38,639,923.80x = 1,071,361,350,346,015.38 - Step 5: Solve for x
x = 1,071,361,350,346,015.38/38,639,923.80 - Step 6: Final answer
x = 27,726,797.70
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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.