Finding the Fourth Proportional to 286,258,617.64, 428,990,668.74 and 130,431,604.96
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Solution
The fourth proportional to 286,258,617.64, 428,990,668.74 and 130,431,604.96 is: 195,466,399.92
Step by Step Solution
- Step 1: Write the proportion equation
286,258,617.64 : 428,990,668.74 = 130,431,604.96 : x - Step 2: Convert to fraction form
286,258,617.64/428,990,668.74 = 130,431,604.96/x - Step 3: Cross multiply
286,258,617.64x = 428,990,668.74 × 130,431,604.96 - Step 4: Simplify right side
286,258,617.64x = 55,953,941,436,621,896 - Step 5: Solve for x
x = 55,953,941,436,621,896/286,258,617.64 - Step 6: Final answer
x = 195,466,399.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.