Finding the Fourth Proportional to 691,216,982.49, 1,036,826,471.62 and 282,273,132.99
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Solution
The fourth proportional to 691,216,982.49, 1,036,826,471.62 and 282,273,132.99 is: 423,410,106.99
Step by Step Solution
- Step 1: Write the proportion equation
691,216,982.49 : 1,036,826,471.62 = 282,273,132.99 : x - Step 2: Convert to fraction form
691,216,982.49/1,036,826,471.62 = 282,273,132.99/x - Step 3: Cross multiply
691,216,982.49x = 1,036,826,471.62 × 282,273,132.99 - Step 4: Simplify right side
691,216,982.49x = 292,668,256,507,595,328 - Step 5: Solve for x
x = 292,668,256,507,595,328/691,216,982.49 - Step 6: Final answer
x = 423,410,106.99
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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.