Finding the Fourth Proportional to 7,488,372,281.70, 11,232,558,422.55 and 5,311,589,945.70
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Solution
The fourth proportional to 7,488,372,281.70, 11,232,558,422.55 and 5,311,589,945.70 is: 7,967,384,918.55
Step by Step Solution
- Step 1: Write the proportion equation
7,488,372,281.70 : 11,232,558,422.55 = 5,311,589,945.70 : x - Step 2: Convert to fraction form
7,488,372,281.70/11,232,558,422.55 = 5,311,589,945.70/x - Step 3: Cross multiply
7,488,372,281.70x = 11,232,558,422.55 × 5,311,589,945.70 - Step 4: Simplify right side
7,488,372,281.70x = 59,662,744,381,704,429,568 - Step 5: Solve for x
x = 59,662,744,381,704,429,568/7,488,372,281.70 - Step 6: Final answer
x = 7,967,384,918.55
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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.