Finding the Fourth Proportional to 985,268,556.27, 1,352,428,029.81 and 871,261,470.99
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Solution
The fourth proportional to 985,268,556.27, 1,352,428,029.81 and 871,261,470.99 is: 1,195,936,303.01
Step by Step Solution
- Step 1: Write the proportion equation
985,268,556.27 : 1,352,428,029.81 = 871,261,470.99 : x - Step 2: Convert to fraction form
985,268,556.27/1,352,428,029.81 = 871,261,470.99/x - Step 3: Cross multiply
985,268,556.27x = 1,352,428,029.81 × 871,261,470.99 - Step 4: Simplify right side
985,268,556.27x = 1,178,318,434,660,368,128 - Step 5: Solve for x
x = 1,178,318,434,660,368,128/985,268,556.27 - Step 6: Final answer
x = 1,195,936,303.01
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.