Finding the Fourth Proportional to 299,271,809.80, 448,907,714.70 and 290,313,857.80
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Solution
The fourth proportional to 299,271,809.80, 448,907,714.70 and 290,313,857.80 is: 435,470,786.70
Step by Step Solution
- Step 1: Write the proportion equation
299,271,809.80 : 448,907,714.70 = 290,313,857.80 : x - Step 2: Convert to fraction form
299,271,809.80/448,907,714.70 = 290,313,857.80/x - Step 3: Cross multiply
299,271,809.80x = 448,907,714.70 × 290,313,857.80 - Step 4: Simplify right side
299,271,809.80x = 130,324,130,450,738,768 - Step 5: Solve for x
x = 130,324,130,450,738,768/299,271,809.80 - Step 6: Final answer
x = 435,470,786.70
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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.