Finding the Fourth Proportional to 199,628,534.20, 299,420,682.90 and 163,664,015.80
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Solution
The fourth proportional to 199,628,534.20, 299,420,682.90 and 163,664,015.80 is: 245,477,890.09
Step by Step Solution
- Step 1: Write the proportion equation
199,628,534.20 : 299,420,682.90 = 163,664,015.80 : x - Step 2: Convert to fraction form
199,628,534.20/299,420,682.90 = 163,664,015.80/x - Step 3: Cross multiply
199,628,534.20x = 299,420,682.90 × 163,664,015.80 - Step 4: Simplify right side
199,628,534.20x = 49,004,391,376,992,392 - Step 5: Solve for x
x = 49,004,391,376,992,392/199,628,534.20 - Step 6: Final answer
x = 245,477,890.09
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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.