Finding the Fourth Proportional to 3,625,878,139.20, 5,438,817,208.80 and 3,197,324,116.80
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Solution
The fourth proportional to 3,625,878,139.20, 5,438,817,208.80 and 3,197,324,116.80 is: 4,795,986,175.20
Step by Step Solution
- Step 1: Write the proportion equation
3,625,878,139.20 : 5,438,817,208.80 = 3,197,324,116.80 : x - Step 2: Convert to fraction form
3,625,878,139.20/5,438,817,208.80 = 3,197,324,116.80/x - Step 3: Cross multiply
3,625,878,139.20x = 5,438,817,208.80 × 3,197,324,116.80 - Step 4: Simplify right side
3,625,878,139.20x = 17,389,661,428,563,103,744 - Step 5: Solve for x
x = 17,389,661,428,563,103,744/3,625,878,139.20 - Step 6: Final answer
x = 4,795,986,175.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.