Finding the Fourth Proportional to 103,995,750.36, 143,512,381.50 and 57,585,007.80
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Solution
The fourth proportional to 103,995,750.36, 143,512,381.50 and 57,585,007.80 is: 79,466,339.53
Step by Step Solution
- Step 1: Write the proportion equation
103,995,750.36 : 143,512,381.50 = 57,585,007.80 : x - Step 2: Convert to fraction form
103,995,750.36/143,512,381.50 = 57,585,007.80/x - Step 3: Cross multiply
103,995,750.36x = 143,512,381.50 × 57,585,007.80 - Step 4: Simplify right side
103,995,750.36x = 8,264,161,608,074,075 - Step 5: Solve for x
x = 8,264,161,608,074,075/103,995,750.36 - Step 6: Final answer
x = 79,466,339.53
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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.