Finding the Fourth Proportional to 3,995,519,889,839.40, 5,512,872,415,100 and 2,261,329,445,535.80
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Solution
The fourth proportional to 3,995,519,889,839.40, 5,512,872,415,100 and 2,261,329,445,535.80 is: 3,120,099,778,116.43
Step by Step Solution
- Step 1: Write the proportion equation
3,995,519,889,839.40 : 5,512,872,415,100 = 2,261,329,445,535.80 : x - Step 2: Convert to fraction form
3,995,519,889,839.40/5,512,872,415,100 = 2,261,329,445,535.80/x - Step 3: Cross multiply
3,995,519,889,839.40x = 5,512,872,415,100 × 2,261,329,445,535.80 - Step 4: Simplify right side
3,995,519,889,839.40x = 12,466,420,721,747,689,409,085,440 - Step 5: Solve for x
x = 12,466,420,721,747,689,409,085,440/3,995,519,889,839.40 - Step 6: Final answer
x = 3,120,099,778,116.43
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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.