Finding the Fourth Proportional to 1,379,088,053.80, 2,068,632,080.70 and 1,106,990,261.80
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Solution
The fourth proportional to 1,379,088,053.80, 2,068,632,080.70 and 1,106,990,261.80 is: 1,660,485,392.70
Step by Step Solution
- Step 1: Write the proportion equation
1,379,088,053.80 : 2,068,632,080.70 = 1,106,990,261.80 : x - Step 2: Convert to fraction form
1,379,088,053.80/2,068,632,080.70 = 1,106,990,261.80/x - Step 3: Cross multiply
1,379,088,053.80x = 2,068,632,080.70 × 1,106,990,261.80 - Step 4: Simplify right side
1,379,088,053.80x = 2,289,955,568,581,971,712 - Step 5: Solve for x
x = 2,289,955,568,581,971,712/1,379,088,053.80 - Step 6: Final answer
x = 1,660,485,392.70
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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.