Finding the Fourth Proportional to 4,257,119,858.40, 6,385,679,787.60 and 2,515,693,989.60
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Solution
The fourth proportional to 4,257,119,858.40, 6,385,679,787.60 and 2,515,693,989.60 is: 3,773,540,984.40
Step by Step Solution
- Step 1: Write the proportion equation
4,257,119,858.40 : 6,385,679,787.60 = 2,515,693,989.60 : x - Step 2: Convert to fraction form
4,257,119,858.40/6,385,679,787.60 = 2,515,693,989.60/x - Step 3: Cross multiply
4,257,119,858.40x = 6,385,679,787.60 × 2,515,693,989.60 - Step 4: Simplify right side
4,257,119,858.40x = 16,064,416,261,175,525,376 - Step 5: Solve for x
x = 16,064,416,261,175,525,376/4,257,119,858.40 - Step 6: Final answer
x = 3,773,540,984.40
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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.