Finding the Fourth Proportional to 18,306,273.58, 25,260,987.92 and 10,862,653.03
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Solution
The fourth proportional to 18,306,273.58, 25,260,987.92 and 10,862,653.03 is: 14,989,470.45
Step by Step Solution
- Step 1: Write the proportion equation
18,306,273.58 : 25,260,987.92 = 10,862,653.03 : x - Step 2: Convert to fraction form
18,306,273.58/25,260,987.92 = 10,862,653.03/x - Step 3: Cross multiply
18,306,273.58x = 25,260,987.92 × 10,862,653.03 - Step 4: Simplify right side
18,306,273.58x = 274,401,346,852,515.66 - Step 5: Solve for x
x = 274,401,346,852,515.66/18,306,273.58 - Step 6: Final answer
x = 14,989,470.45
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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.