Finding the Fourth Proportional to 827,420,612.40, 1,241,130,918.60 and 366,869,905.20
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Solution
The fourth proportional to 827,420,612.40, 1,241,130,918.60 and 366,869,905.20 is: 550,304,857.80
Step by Step Solution
- Step 1: Write the proportion equation
827,420,612.40 : 1,241,130,918.60 = 366,869,905.20 : x - Step 2: Convert to fraction form
827,420,612.40/1,241,130,918.60 = 366,869,905.20/x - Step 3: Cross multiply
827,420,612.40x = 1,241,130,918.60 × 366,869,905.20 - Step 4: Simplify right side
827,420,612.40x = 455,333,582,447,570,880 - Step 5: Solve for x
x = 455,333,582,447,570,880/827,420,612.40 - Step 6: Final answer
x = 550,304,857.80
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1.5x scale
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.