Finding the Fourth Proportional to 3,963,449,919.40, 5,941,247,882.70 and 1,861,163,026.60
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Solution
The fourth proportional to 3,963,449,919.40, 5,941,247,882.70 and 1,861,163,026.60 is: 2,789,900,494.77
Step by Step Solution
- Step 1: Write the proportion equation
3,963,449,919.40 : 5,941,247,882.70 = 1,861,163,026.60 : x - Step 2: Convert to fraction form
3,963,449,919.40/5,941,247,882.70 = 1,861,163,026.60/x - Step 3: Cross multiply
3,963,449,919.40x = 5,941,247,882.70 × 1,861,163,026.60 - Step 4: Simplify right side
3,963,449,919.40x = 11,057,630,891,146,772,480 - Step 5: Solve for x
x = 11,057,630,891,146,772,480/3,963,449,919.40 - Step 6: Final answer
x = 2,789,900,494.77
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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.