Finding the Fourth Proportional to 3,120,288,129, 4,680,366,619.58 and 759,462,258.92
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Solution
The fourth proportional to 3,120,288,129, 4,680,366,619.58 and 759,462,258.92 is: 1,139,177,428.02
Step by Step Solution
- Step 1: Write the proportion equation
3,120,288,129 : 4,680,366,619.58 = 759,462,258.92 : x - Step 2: Convert to fraction form
3,120,288,129/4,680,366,619.58 = 759,462,258.92/x - Step 3: Cross multiply
3,120,288,129x = 4,680,366,619.58 × 759,462,258.92 - Step 4: Simplify right side
3,120,288,129x = 3,554,561,805,479,990,784 - Step 5: Solve for x
x = 3,554,561,805,479,990,784/3,120,288,129 - Step 6: Final answer
x = 1,139,177,428.02
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1.5x scale
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.