Finding the Fourth Proportional to 39,720,898.81, 54,839,295.50 and 31,494,192.13
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Solution
The fourth proportional to 39,720,898.81, 54,839,295.50 and 31,494,192.13 is: 43,481,375.31
Step by Step Solution
- Step 1: Write the proportion equation
39,720,898.81 : 54,839,295.50 = 31,494,192.13 : x - Step 2: Convert to fraction form
39,720,898.81/54,839,295.50 = 31,494,192.13/x - Step 3: Cross multiply
39,720,898.81x = 54,839,295.50 × 31,494,192.13 - Step 4: Simplify right side
39,720,898.81x = 1,727,119,308,750,844.25 - Step 5: Solve for x
x = 1,727,119,308,750,844.25/39,720,898.81 - Step 6: Final answer
x = 43,481,375.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.