Finding the Fourth Proportional to 321,731,201.80, 482,596,802.70 and 106,320,449.80
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Solution
The fourth proportional to 321,731,201.80, 482,596,802.70 and 106,320,449.80 is: 159,480,674.70
Step by Step Solution
- Step 1: Write the proportion equation
321,731,201.80 : 482,596,802.70 = 106,320,449.80 : x - Step 2: Convert to fraction form
321,731,201.80/482,596,802.70 = 106,320,449.80/x - Step 3: Cross multiply
321,731,201.80x = 482,596,802.70 × 106,320,449.80 - Step 4: Simplify right side
321,731,201.80x = 51,309,909,135,105,848 - Step 5: Solve for x
x = 51,309,909,135,105,848/321,731,201.80 - Step 6: Final answer
x = 159,480,674.70
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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.