Finding the Fourth Proportional to 864,561,455.68, 1,193,080,565.46 and 468,081,275.44
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Solution
The fourth proportional to 864,561,455.68, 1,193,080,565.46 and 468,081,275.44 is: 645,944,448.62
Step by Step Solution
- Step 1: Write the proportion equation
864,561,455.68 : 1,193,080,565.46 = 468,081,275.44 : x - Step 2: Convert to fraction form
864,561,455.68/1,193,080,565.46 = 468,081,275.44/x - Step 3: Cross multiply
864,561,455.68x = 1,193,080,565.46 × 468,081,275.44 - Step 4: Simplify right side
864,561,455.68x = 558,458,672,783,193,216 - Step 5: Solve for x
x = 558,458,672,783,193,216/864,561,455.68 - Step 6: Final answer
x = 645,944,448.62
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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.