Finding the Fourth Proportional to 870,081,337.20, 1,305,122,005.80 and 502,245,433.20
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Solution
The fourth proportional to 870,081,337.20, 1,305,122,005.80 and 502,245,433.20 is: 753,368,149.80
Step by Step Solution
- Step 1: Write the proportion equation
870,081,337.20 : 1,305,122,005.80 = 502,245,433.20 : x - Step 2: Convert to fraction form
870,081,337.20/1,305,122,005.80 = 502,245,433.20/x - Step 3: Cross multiply
870,081,337.20x = 1,305,122,005.80 × 502,245,433.20 - Step 4: Simplify right side
870,081,337.20x = 655,491,567,181,873,920 - Step 5: Solve for x
x = 655,491,567,181,873,920/870,081,337.20 - Step 6: Final answer
x = 753,368,149.80
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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.