Finding the Fourth Proportional to 979,862,767.20, 1,469,794,150.80 and 366,367,276.80
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Solution
The fourth proportional to 979,862,767.20, 1,469,794,150.80 and 366,367,276.80 is: 549,550,915.20
Step by Step Solution
- Step 1: Write the proportion equation
979,862,767.20 : 1,469,794,150.80 = 366,367,276.80 : x - Step 2: Convert to fraction form
979,862,767.20/1,469,794,150.80 = 366,367,276.80/x - Step 3: Cross multiply
979,862,767.20x = 1,469,794,150.80 × 366,367,276.80 - Step 4: Simplify right side
979,862,767.20x = 538,484,480,485,164,544 - Step 5: Solve for x
x = 538,484,480,485,164,544/979,862,767.20 - Step 6: Final answer
x = 549,550,915.20
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Similar ratio
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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.