Finding the Fourth Proportional to 2,590,777,276.40, 3,886,165,914.60 and 2,539,121,211.20
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Solution
The fourth proportional to 2,590,777,276.40, 3,886,165,914.60 and 2,539,121,211.20 is: 3,808,681,816.80
Step by Step Solution
- Step 1: Write the proportion equation
2,590,777,276.40 : 3,886,165,914.60 = 2,539,121,211.20 : x - Step 2: Convert to fraction form
2,590,777,276.40/3,886,165,914.60 = 2,539,121,211.20/x - Step 3: Cross multiply
2,590,777,276.40x = 3,886,165,914.60 × 2,539,121,211.20 - Step 4: Simplify right side
2,590,777,276.40x = 9,867,446,304,003,307,520 - Step 5: Solve for x
x = 9,867,446,304,003,307,520/2,590,777,276.40 - Step 6: Final answer
x = 3,808,681,816.80
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Double scale
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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.