Finding the Fourth Proportional to 3,139,568,747.02, 4,331,243,495.55 and 1,868,697,125.62
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Solution
The fourth proportional to 3,139,568,747.02, 4,331,243,495.55 and 1,868,697,125.62 is: 2,577,991,731.56
Step by Step Solution
- Step 1: Write the proportion equation
3,139,568,747.02 : 4,331,243,495.55 = 1,868,697,125.62 : x - Step 2: Convert to fraction form
3,139,568,747.02/4,331,243,495.55 = 1,868,697,125.62/x - Step 3: Cross multiply
3,139,568,747.02x = 4,331,243,495.55 × 1,868,697,125.62 - Step 4: Simplify right side
3,139,568,747.02x = 8,093,782,270,494,606,336 - Step 5: Solve for x
x = 8,093,782,270,494,606,336/3,139,568,747.02 - Step 6: Final answer
x = 2,577,991,731.56
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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.