Finding the Fourth Proportional to 12,992,471,722.74, 19,485,587,137.84 and 5,998,562,902.20
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Solution
The fourth proportional to 12,992,471,722.74, 19,485,587,137.84 and 5,998,562,902.20 is: 8,996,403,657.98
Step by Step Solution
- Step 1: Write the proportion equation
12,992,471,722.74 : 19,485,587,137.84 = 5,998,562,902.20 : x - Step 2: Convert to fraction form
12,992,471,722.74/19,485,587,137.84 = 5,998,562,902.20/x - Step 3: Cross multiply
12,992,471,722.74x = 19,485,587,137.84 × 5,998,562,902.20 - Step 4: Simplify right side
12,992,471,722.74x = 116,885,520,132,632,494,080 - Step 5: Solve for x
x = 116,885,520,132,632,494,080/12,992,471,722.74 - Step 6: Final answer
x = 8,996,403,657.98
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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.