Finding the Fourth Proportional to 559,872,743.80, 839,809,115.70 and 385,276,660.60
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Solution
The fourth proportional to 559,872,743.80, 839,809,115.70 and 385,276,660.60 is: 577,914,990.90
Step by Step Solution
- Step 1: Write the proportion equation
559,872,743.80 : 839,809,115.70 = 385,276,660.60 : x - Step 2: Convert to fraction form
559,872,743.80/839,809,115.70 = 385,276,660.60/x - Step 3: Cross multiply
559,872,743.80x = 839,809,115.70 × 385,276,660.60 - Step 4: Simplify right side
559,872,743.80x = 323,558,851,638,335,040 - Step 5: Solve for x
x = 323,558,851,638,335,040/559,872,743.80 - Step 6: Final answer
x = 577,914,990.90
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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.