Finding the Fourth Proportional to 285,079,434.08, 393,409,619.06 and 154,699,242.08
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Solution
The fourth proportional to 285,079,434.08, 393,409,619.06 and 154,699,242.08 is: 213,484,954.08
Step by Step Solution
- Step 1: Write the proportion equation
285,079,434.08 : 393,409,619.06 = 154,699,242.08 : x - Step 2: Convert to fraction form
285,079,434.08/393,409,619.06 = 154,699,242.08/x - Step 3: Cross multiply
285,079,434.08x = 393,409,619.06 × 154,699,242.08 - Step 4: Simplify right side
285,079,434.08x = 60,860,169,892,822,976 - Step 5: Solve for x
x = 60,860,169,892,822,976/285,079,434.08 - Step 6: Final answer
x = 213,484,954.08
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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.