Finding the Fourth Proportional to 808,626,743.80, 1,212,940,115.70 and 263,368,277.80
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Solution
The fourth proportional to 808,626,743.80, 1,212,940,115.70 and 263,368,277.80 is: 395,052,416.70
Step by Step Solution
- Step 1: Write the proportion equation
808,626,743.80 : 1,212,940,115.70 = 263,368,277.80 : x - Step 2: Convert to fraction form
808,626,743.80/1,212,940,115.70 = 263,368,277.80/x - Step 3: Cross multiply
808,626,743.80x = 1,212,940,115.70 × 263,368,277.80 - Step 4: Simplify right side
808,626,743.80x = 319,449,949,346,441,792 - Step 5: Solve for x
x = 319,449,949,346,441,792/808,626,743.80 - Step 6: Final answer
x = 395,052,416.70
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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.