Finding the Fourth Proportional to 513,832,081.55, 709,088,617.97 and 278,882,745.36
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Solution
The fourth proportional to 513,832,081.55, 709,088,617.97 and 278,882,745.36 is: 384,858,376.08
Step by Step Solution
- Step 1: Write the proportion equation
513,832,081.55 : 709,088,617.97 = 278,882,745.36 : x - Step 2: Convert to fraction form
513,832,081.55/709,088,617.97 = 278,882,745.36/x - Step 3: Cross multiply
513,832,081.55x = 709,088,617.97 × 278,882,745.36 - Step 4: Simplify right side
513,832,081.55x = 197,752,580,479,994,144 - Step 5: Solve for x
x = 197,752,580,479,994,144/513,832,081.55 - Step 6: Final answer
x = 384,858,376.08
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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.