Finding the Fourth Proportional to 187,814,352.09, 281,721,536.89 and 128,668,409.66
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Solution
The fourth proportional to 187,814,352.09, 281,721,536.89 and 128,668,409.66 is: 193,002,620.50
Step by Step Solution
- Step 1: Write the proportion equation
187,814,352.09 : 281,721,536.89 = 128,668,409.66 : x - Step 2: Convert to fraction form
187,814,352.09/281,721,536.89 = 128,668,409.66/x - Step 3: Cross multiply
187,814,352.09x = 281,721,536.89 × 128,668,409.66 - Step 4: Simplify right side
187,814,352.09x = 36,248,662,119,713,072 - Step 5: Solve for x
x = 36,248,662,119,713,072/187,814,352.09 - Step 6: Final answer
x = 193,002,620.50
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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.