Finding the Fourth Proportional to 873,767,342.20, 1,310,651,013.30 and 798,940,449.40
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Solution
The fourth proportional to 873,767,342.20, 1,310,651,013.30 and 798,940,449.40 is: 1,198,410,674.10
Step by Step Solution
- Step 1: Write the proportion equation
873,767,342.20 : 1,310,651,013.30 = 798,940,449.40 : x - Step 2: Convert to fraction form
873,767,342.20/1,310,651,013.30 = 798,940,449.40/x - Step 3: Cross multiply
873,767,342.20x = 1,310,651,013.30 × 798,940,449.40 - Step 4: Simplify right side
873,767,342.20x = 1,047,132,109,572,467,328 - Step 5: Solve for x
x = 1,047,132,109,572,467,328/873,767,342.20 - Step 6: Final answer
x = 1,198,410,674.10
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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.