Finding the Fourth Proportional to 4,138,979,643.60, 6,208,469,465.40 and 3,894,091,630.80
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Solution
The fourth proportional to 4,138,979,643.60, 6,208,469,465.40 and 3,894,091,630.80 is: 5,841,137,446.20
Step by Step Solution
- Step 1: Write the proportion equation
4,138,979,643.60 : 6,208,469,465.40 = 3,894,091,630.80 : x - Step 2: Convert to fraction form
4,138,979,643.60/6,208,469,465.40 = 3,894,091,630.80/x - Step 3: Cross multiply
4,138,979,643.60x = 6,208,469,465.40 × 3,894,091,630.80 - Step 4: Simplify right side
4,138,979,643.60x = 24,176,348,985,291,489,280 - Step 5: Solve for x
x = 24,176,348,985,291,489,280/4,138,979,643.60 - Step 6: Final answer
x = 5,841,137,446.20
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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.