Finding the Fourth Proportional to 299,418,829.20, 449,128,243.80 and 163,369,933.20
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Solution
The fourth proportional to 299,418,829.20, 449,128,243.80 and 163,369,933.20 is: 245,054,899.80
Step by Step Solution
- Step 1: Write the proportion equation
299,418,829.20 : 449,128,243.80 = 163,369,933.20 : x - Step 2: Convert to fraction form
299,418,829.20/449,128,243.80 = 163,369,933.20/x - Step 3: Cross multiply
299,418,829.20x = 449,128,243.80 × 163,369,933.20 - Step 4: Simplify right side
299,418,829.20x = 73,374,051,187,839,312 - Step 5: Solve for x
x = 73,374,051,187,839,312/299,418,829.20 - Step 6: Final answer
x = 245,054,899.80
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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.