Finding the Fourth Proportional to 1,212,793,812.30, 1,819,190,718.45 and 1,085,814,842.70
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Solution
The fourth proportional to 1,212,793,812.30, 1,819,190,718.45 and 1,085,814,842.70 is: 1,628,722,264.05
Step by Step Solution
- Step 1: Write the proportion equation
1,212,793,812.30 : 1,819,190,718.45 = 1,085,814,842.70 : x - Step 2: Convert to fraction form
1,212,793,812.30/1,819,190,718.45 = 1,085,814,842.70/x - Step 3: Cross multiply
1,212,793,812.30x = 1,819,190,718.45 × 1,085,814,842.70 - Step 4: Simplify right side
1,212,793,812.30x = 1,975,304,283,795,086,848 - Step 5: Solve for x
x = 1,975,304,283,795,086,848/1,212,793,812.30 - Step 6: Final answer
x = 1,628,722,264.05
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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.