Finding the Fourth Proportional to 838,968,192,805.20, 1,258,452,289,207.80 and 838,968,192,805.20
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Solution
The fourth proportional to 838,968,192,805.20, 1,258,452,289,207.80 and 838,968,192,805.20 is: 1,258,452,289,207.80
Step by Step Solution
- Step 1: Write the proportion equation
838,968,192,805.20 : 1,258,452,289,207.80 = 838,968,192,805.20 : x - Step 2: Convert to fraction form
838,968,192,805.20/1,258,452,289,207.80 = 838,968,192,805.20/x - Step 3: Cross multiply
838,968,192,805.20x = 1,258,452,289,207.80 × 838,968,192,805.20 - Step 4: Simplify right side
838,968,192,805.20x = 1,055,801,442,808,234,797,694,976 - Step 5: Solve for x
x = 1,055,801,442,808,234,797,694,976/838,968,192,805.20 - Step 6: Final answer
x = 1,258,452,289,207.80
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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.