Finding the Fourth Proportional to 3,118,176,077.20, 4,677,264,115.80 and 937,142,213.20
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Solution
The fourth proportional to 3,118,176,077.20, 4,677,264,115.80 and 937,142,213.20 is: 1,405,713,319.80
Step by Step Solution
- Step 1: Write the proportion equation
3,118,176,077.20 : 4,677,264,115.80 = 937,142,213.20 : x - Step 2: Convert to fraction form
3,118,176,077.20/4,677,264,115.80 = 937,142,213.20/x - Step 3: Cross multiply
3,118,176,077.20x = 4,677,264,115.80 × 937,142,213.20 - Step 4: Simplify right side
3,118,176,077.20x = 4,383,261,645,201,753,600 - Step 5: Solve for x
x = 4,383,261,645,201,753,600/3,118,176,077.20 - Step 6: Final answer
x = 1,405,713,319.80
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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.