Finding the Fourth Proportional to 19,646,143.80, 29,469,215.70 and 10,080,205.80
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Solution
The fourth proportional to 19,646,143.80, 29,469,215.70 and 10,080,205.80 is: 15,120,308.70
Step by Step Solution
- Step 1: Write the proportion equation
19,646,143.80 : 29,469,215.70 = 10,080,205.80 : x - Step 2: Convert to fraction form
19,646,143.80/29,469,215.70 = 10,080,205.80/x - Step 3: Cross multiply
19,646,143.80x = 29,469,215.70 × 10,080,205.80 - Step 4: Simplify right side
19,646,143.80x = 297,055,759,020,591.06 - Step 5: Solve for x
x = 297,055,759,020,591.06/19,646,143.80 - Step 6: Final answer
x = 15,120,308.70
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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.