Finding the Fourth Proportional to 7,085,892,121.65, 10,628,838,182.48 and 2,177,928,198.45
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Solution
The fourth proportional to 7,085,892,121.65, 10,628,838,182.48 and 2,177,928,198.45 is: 3,266,892,297.68
Step by Step Solution
- Step 1: Write the proportion equation
7,085,892,121.65 : 10,628,838,182.48 = 2,177,928,198.45 : x - Step 2: Convert to fraction form
7,085,892,121.65/10,628,838,182.48 = 2,177,928,198.45/x - Step 3: Cross multiply
7,085,892,121.65x = 10,628,838,182.48 × 2,177,928,198.45 - Step 4: Simplify right side
7,085,892,121.65x = 23,148,846,394,374,348,800 - Step 5: Solve for x
x = 23,148,846,394,374,348,800/7,085,892,121.65 - Step 6: Final answer
x = 3,266,892,297.68
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Double scale
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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.