Finding the Fourth Proportional to 781,393,469.99, 1,171,198,629.03 and 314,756,302.43
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Solution
The fourth proportional to 781,393,469.99, 1,171,198,629.03 and 314,756,302.43 is: 471,775,314.28
Step by Step Solution
- Step 1: Write the proportion equation
781,393,469.99 : 1,171,198,629.03 = 314,756,302.43 : x - Step 2: Convert to fraction form
781,393,469.99/1,171,198,629.03 = 314,756,302.43/x - Step 3: Cross multiply
781,393,469.99x = 1,171,198,629.03 × 314,756,302.43 - Step 4: Simplify right side
781,393,469.99x = 368,642,149,884,568,064 - Step 5: Solve for x
x = 368,642,149,884,568,064/781,393,469.99 - Step 6: Final answer
x = 471,775,314.28
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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.