Finding the Fourth Proportional to 7,131,392,076.80, 10,697,088,115.20 and 5,498,805,324.80
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Solution
The fourth proportional to 7,131,392,076.80, 10,697,088,115.20 and 5,498,805,324.80 is: 8,248,207,987.20
Step by Step Solution
- Step 1: Write the proportion equation
7,131,392,076.80 : 10,697,088,115.20 = 5,498,805,324.80 : x - Step 2: Convert to fraction form
7,131,392,076.80/10,697,088,115.20 = 5,498,805,324.80/x - Step 3: Cross multiply
7,131,392,076.80x = 10,697,088,115.20 × 5,498,805,324.80 - Step 4: Simplify right side
7,131,392,076.80x = 58,821,205,087,716,564,992 - Step 5: Solve for x
x = 58,821,205,087,716,564,992/7,131,392,076.80 - Step 6: Final answer
x = 8,248,207,987.20
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Double scale
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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.