Finding the Fourth Proportional to 18,248,589.98, 25,183,694.76 and 9,988,659.01
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Solution
The fourth proportional to 18,248,589.98, 25,183,694.76 and 9,988,659.01 is: 13,784,700.07
Step by Step Solution
- Step 1: Write the proportion equation
18,248,589.98 : 25,183,694.76 = 9,988,659.01 : x - Step 2: Convert to fraction form
18,248,589.98/25,183,694.76 = 9,988,659.01/x - Step 3: Cross multiply
18,248,589.98x = 25,183,694.76 × 9,988,659.01 - Step 4: Simplify right side
18,248,589.98x = 251,551,339,569,563.81 - Step 5: Solve for x
x = 251,551,339,569,563.81/18,248,589.98 - Step 6: Final answer
x = 13,784,700.07
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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.