Finding the Fourth Proportional to 285,079,322.18, 393,409,464.64 and 154,699,130.18
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Solution
The fourth proportional to 285,079,322.18, 393,409,464.64 and 154,699,130.18 is: 213,484,799.66
Step by Step Solution
- Step 1: Write the proportion equation
285,079,322.18 : 393,409,464.64 = 154,699,130.18 : x - Step 2: Convert to fraction form
285,079,322.18/393,409,464.64 = 154,699,130.18/x - Step 3: Cross multiply
285,079,322.18x = 393,409,464.64 × 154,699,130.18 - Step 4: Simplify right side
285,079,322.18x = 60,860,101,982,033,672 - Step 5: Solve for x
x = 60,860,101,982,033,672/285,079,322.18 - Step 6: Final answer
x = 213,484,799.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.