Finding the Fourth Proportional to 51,931,991.09, 71,659,903.57 and 29,912,651.80
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Solution
The fourth proportional to 51,931,991.09, 71,659,903.57 and 29,912,651.80 is: 41,275,862.88
Step by Step Solution
- Step 1: Write the proportion equation
51,931,991.09 : 71,659,903.57 = 29,912,651.80 : x - Step 2: Convert to fraction form
51,931,991.09/71,659,903.57 = 29,912,651.80/x - Step 3: Cross multiply
51,931,991.09x = 71,659,903.57 × 29,912,651.80 - Step 4: Simplify right side
51,931,991.09x = 2,143,537,743,257,055.25 - Step 5: Solve for x
x = 2,143,537,743,257,055.25/51,931,991.09 - Step 6: Final answer
x = 41,275,862.88
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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.