Finding the Fourth Proportional to 6,810,318,233.20, 10,215,477,349.80 and 6,657,263,225.20
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Solution
The fourth proportional to 6,810,318,233.20, 10,215,477,349.80 and 6,657,263,225.20 is: 9,985,894,837.80
Step by Step Solution
- Step 1: Write the proportion equation
6,810,318,233.20 : 10,215,477,349.80 = 6,657,263,225.20 : x - Step 2: Convert to fraction form
6,810,318,233.20/10,215,477,349.80 = 6,657,263,225.20/x - Step 3: Cross multiply
6,810,318,233.20x = 10,215,477,349.80 × 6,657,263,225.20 - Step 4: Simplify right side
6,810,318,233.20x = 68,007,121,688,687,091,712 - Step 5: Solve for x
x = 68,007,121,688,687,091,712/6,810,318,233.20 - Step 6: Final answer
x = 9,985,894,837.80
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Double scale
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Similar ratio
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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.