Finding the Fourth Proportional to 21,301,874.88, 29,382,955.84 and 14,773,122.20
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Solution
The fourth proportional to 21,301,874.88, 29,382,955.84 and 14,773,122.20 is: 20,377,455.02
Step by Step Solution
- Step 1: Write the proportion equation
21,301,874.88 : 29,382,955.84 = 14,773,122.20 : x - Step 2: Convert to fraction form
21,301,874.88/29,382,955.84 = 14,773,122.20/x - Step 3: Cross multiply
21,301,874.88x = 29,382,955.84 × 14,773,122.20 - Step 4: Simplify right side
21,301,874.88x = 434,077,997,230,793.19 - Step 5: Solve for x
x = 434,077,997,230,793.19/21,301,874.88 - Step 6: Final answer
x = 20,377,455.02
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1.5x scale
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.