Finding the Fourth Proportional to 7,129,609,928.60, 10,694,414,892.90 and 6,827,326,287.80
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Solution
The fourth proportional to 7,129,609,928.60, 10,694,414,892.90 and 6,827,326,287.80 is: 10,240,989,431.70
Step by Step Solution
- Step 1: Write the proportion equation
7,129,609,928.60 : 10,694,414,892.90 = 6,827,326,287.80 : x - Step 2: Convert to fraction form
7,129,609,928.60/10,694,414,892.90 = 6,827,326,287.80/x - Step 3: Cross multiply
7,129,609,928.60x = 10,694,414,892.90 × 6,827,326,287.80 - Step 4: Simplify right side
7,129,609,928.60x = 73,014,259,930,935,992,320 - Step 5: Solve for x
x = 73,014,259,930,935,992,320/7,129,609,928.60 - Step 6: Final answer
x = 10,240,989,431.70
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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.