Finding the Fourth Proportional to 5,390,170,419.60, 8,085,255,629.40 and 3,295,017,421.20
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Solution
The fourth proportional to 5,390,170,419.60, 8,085,255,629.40 and 3,295,017,421.20 is: 4,942,526,131.80
Step by Step Solution
- Step 1: Write the proportion equation
5,390,170,419.60 : 8,085,255,629.40 = 3,295,017,421.20 : x - Step 2: Convert to fraction form
5,390,170,419.60/8,085,255,629.40 = 3,295,017,421.20/x - Step 3: Cross multiply
5,390,170,419.60x = 8,085,255,629.40 × 3,295,017,421.20 - Step 4: Simplify right side
5,390,170,419.60x = 26,641,058,153,728,368,640 - Step 5: Solve for x
x = 26,641,058,153,728,368,640/5,390,170,419.60 - Step 6: Final answer
x = 4,942,526,131.80
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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.