Finding the Fourth Proportional to 281,247,998.35, 421,881,565.11 and 133,619,368.36
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Solution
The fourth proportional to 281,247,998.35, 421,881,565.11 and 133,619,368.36 is: 200,433,598.05
Step by Step Solution
- Step 1: Write the proportion equation
281,247,998.35 : 421,881,565.11 = 133,619,368.36 : x - Step 2: Convert to fraction form
281,247,998.35/421,881,565.11 = 133,619,368.36/x - Step 3: Cross multiply
281,247,998.35x = 421,881,565.11 × 133,619,368.36 - Step 4: Simplify right side
281,247,998.35x = 56,371,548,252,726,416 - Step 5: Solve for x
x = 56,371,548,252,726,416/281,247,998.35 - Step 6: Final answer
x = 200,433,598.05
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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.