Finding the Fourth Proportional to 263,684,509.80, 395,246,828.70 and 127,281,028.20
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Solution
The fourth proportional to 263,684,509.80, 395,246,828.70 and 127,281,028.20 is: 190,786,416.65
Step by Step Solution
- Step 1: Write the proportion equation
263,684,509.80 : 395,246,828.70 = 127,281,028.20 : x - Step 2: Convert to fraction form
263,684,509.80/395,246,828.70 = 127,281,028.20/x - Step 3: Cross multiply
263,684,509.80x = 395,246,828.70 × 127,281,028.20 - Step 4: Simplify right side
263,684,509.80x = 50,307,422,749,725,272 - Step 5: Solve for x
x = 50,307,422,749,725,272/263,684,509.80 - Step 6: Final answer
x = 190,786,416.65
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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.