Finding the Fourth Proportional to 19,646,139.30, 29,469,208.95 and 10,080,201.30
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Solution
The fourth proportional to 19,646,139.30, 29,469,208.95 and 10,080,201.30 is: 15,120,301.95
Step by Step Solution
- Step 1: Write the proportion equation
19,646,139.30 : 29,469,208.95 = 10,080,201.30 : x - Step 2: Convert to fraction form
19,646,139.30/29,469,208.95 = 10,080,201.30/x - Step 3: Cross multiply
19,646,139.30x = 29,469,208.95 × 10,080,201.30 - Step 4: Simplify right side
19,646,139.30x = 297,055,558,367,761.62 - Step 5: Solve for x
x = 297,055,558,367,761.62/19,646,139.30 - Step 6: Final answer
x = 15,120,301.95
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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.