Finding the Fourth Proportional to 7,874,022,801.60, 11,811,034,202.40 and 7,275,407,659.20
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Solution
The fourth proportional to 7,874,022,801.60, 11,811,034,202.40 and 7,275,407,659.20 is: 10,913,111,488.80
Step by Step Solution
- Step 1: Write the proportion equation
7,874,022,801.60 : 11,811,034,202.40 = 7,275,407,659.20 : x - Step 2: Convert to fraction form
7,874,022,801.60/11,811,034,202.40 = 7,275,407,659.20/x - Step 3: Cross multiply
7,874,022,801.60x = 11,811,034,202.40 × 7,275,407,659.20 - Step 4: Simplify right side
7,874,022,801.60x = 85,930,088,699,214,118,912 - Step 5: Solve for x
x = 85,930,088,699,214,118,912/7,874,022,801.60 - Step 6: Final answer
x = 10,913,111,488.80
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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.