Finding the Fourth Proportional to 71,938,362.24, 99,274,869.90 and 38,898,532.26
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Solution
The fourth proportional to 71,938,362.24, 99,274,869.90 and 38,898,532.26 is: 53,679,936.67
Step by Step Solution
- Step 1: Write the proportion equation
71,938,362.24 : 99,274,869.90 = 38,898,532.26 : x - Step 2: Convert to fraction form
71,938,362.24/99,274,869.90 = 38,898,532.26/x - Step 3: Cross multiply
71,938,362.24x = 99,274,869.90 × 38,898,532.26 - Step 4: Simplify right side
71,938,362.24x = 3,861,646,729,412,453 - Step 5: Solve for x
x = 3,861,646,729,412,453/71,938,362.24 - Step 6: Final answer
x = 53,679,936.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.