Finding the Fourth Proportional to 354,629,815.20, 531,944,722.80 and 201,574,807.20
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Solution
The fourth proportional to 354,629,815.20, 531,944,722.80 and 201,574,807.20 is: 302,362,210.80
Step by Step Solution
- Step 1: Write the proportion equation
354,629,815.20 : 531,944,722.80 = 201,574,807.20 : x - Step 2: Convert to fraction form
354,629,815.20/531,944,722.80 = 201,574,807.20/x - Step 3: Cross multiply
354,629,815.20x = 531,944,722.80 × 201,574,807.20 - Step 4: Simplify right side
354,629,815.20x = 107,226,654,939,467,440 - Step 5: Solve for x
x = 107,226,654,939,467,440/354,629,815.20 - Step 6: Final answer
x = 302,362,210.80
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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.