Finding the Fourth Proportional to 21,026,589.12, 31,539,673.41 and 6,649,659.36
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Solution
The fourth proportional to 21,026,589.12, 31,539,673.41 and 6,649,659.36 is: 9,974,422.54
Step by Step Solution
- Step 1: Write the proportion equation
21,026,589.12 : 31,539,673.41 = 6,649,659.36 : x - Step 2: Convert to fraction form
21,026,589.12/31,539,673.41 = 6,649,659.36/x - Step 3: Cross multiply
21,026,589.12x = 31,539,673.41 × 6,649,659.36 - Step 4: Simplify right side
21,026,589.12x = 209,728,084,502,149.62 - Step 5: Solve for x
x = 209,728,084,502,149.62/21,026,589.12 - Step 6: Final answer
x = 9,974,422.54
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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.