Finding the Fourth Proportional to 3,878,575,262.28, 5,352,450,208.20 and 2,185,050,227.40
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Solution
The fourth proportional to 3,878,575,262.28, 5,352,450,208.20 and 2,185,050,227.40 is: 3,015,378,522.71
Step by Step Solution
- Step 1: Write the proportion equation
3,878,575,262.28 : 5,352,450,208.20 = 2,185,050,227.40 : x - Step 2: Convert to fraction form
3,878,575,262.28/5,352,450,208.20 = 2,185,050,227.40/x - Step 3: Cross multiply
3,878,575,262.28x = 5,352,450,208.20 × 2,185,050,227.40 - Step 4: Simplify right side
3,878,575,262.28x = 11,695,372,544,574,586,880 - Step 5: Solve for x
x = 11,695,372,544,574,586,880/3,878,575,262.28 - Step 6: Final answer
x = 3,015,378,522.71
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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.