Finding the Fourth Proportional to 299,271,807.80, 448,907,711.70 and 290,313,855.80
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Solution
The fourth proportional to 299,271,807.80, 448,907,711.70 and 290,313,855.80 is: 435,470,783.70
Step by Step Solution
- Step 1: Write the proportion equation
299,271,807.80 : 448,907,711.70 = 290,313,855.80 : x - Step 2: Convert to fraction form
299,271,807.80/448,907,711.70 = 290,313,855.80/x - Step 3: Cross multiply
299,271,807.80x = 448,907,711.70 × 290,313,855.80 - Step 4: Simplify right side
299,271,807.80x = 130,324,128,681,981,776 - Step 5: Solve for x
x = 130,324,128,681,981,776/299,271,807.80 - Step 6: Final answer
x = 435,470,783.70
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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.