Finding the Fourth Proportional to 256,734,078.59, 354,292,665.28 and 139,259,266.99
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Solution
The fourth proportional to 256,734,078.59, 354,292,665.28 and 139,259,266.99 is: 192,177,591.44
Step by Step Solution
- Step 1: Write the proportion equation
256,734,078.59 : 354,292,665.28 = 139,259,266.99 : x - Step 2: Convert to fraction form
256,734,078.59/354,292,665.28 = 139,259,266.99/x - Step 3: Cross multiply
256,734,078.59x = 354,292,665.28 × 139,259,266.99 - Step 4: Simplify right side
256,734,078.59x = 49,338,536,865,592,344 - Step 5: Solve for x
x = 49,338,536,865,592,344/256,734,078.59 - Step 6: Final answer
x = 192,177,591.44
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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.