Finding the Fourth Proportional to 3,946,139,220.58, 5,446,373,785.90 and 2,360,405,635.74
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Solution
The fourth proportional to 3,946,139,220.58, 5,446,373,785.90 and 2,360,405,635.74 is: 3,257,779,480.14
Step by Step Solution
- Step 1: Write the proportion equation
3,946,139,220.58 : 5,446,373,785.90 = 2,360,405,635.74 : x - Step 2: Convert to fraction form
3,946,139,220.58/5,446,373,785.90 = 2,360,405,635.74/x - Step 3: Cross multiply
3,946,139,220.58x = 5,446,373,785.90 × 2,360,405,635.74 - Step 4: Simplify right side
3,946,139,220.58x = 12,855,651,378,584,958,976 - Step 5: Solve for x
x = 12,855,651,378,584,958,976/3,946,139,220.58 - Step 6: Final answer
x = 3,257,779,480.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.