Finding the Fourth Proportional to 5,347,206,460.20, 8,020,809,690.30 and 5,120,493,729.60
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Solution
The fourth proportional to 5,347,206,460.20, 8,020,809,690.30 and 5,120,493,729.60 is: 7,680,740,594.40
Step by Step Solution
- Step 1: Write the proportion equation
5,347,206,460.20 : 8,020,809,690.30 = 5,120,493,729.60 : x - Step 2: Convert to fraction form
5,347,206,460.20/8,020,809,690.30 = 5,120,493,729.60/x - Step 3: Cross multiply
5,347,206,460.20x = 8,020,809,690.30 × 5,120,493,729.60 - Step 4: Simplify right side
5,347,206,460.20x = 41,070,505,725,496,074,240 - Step 5: Solve for x
x = 41,070,505,725,496,074,240/5,347,206,460.20 - Step 6: Final answer
x = 7,680,740,594.40
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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.