Finding the Fourth Proportional to 428,305,869.36, 591,014,127.24 and 242,627,119.92
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Solution
The fourth proportional to 428,305,869.36, 591,014,127.24 and 242,627,119.92 is: 334,798,249.99
Step by Step Solution
- Step 1: Write the proportion equation
428,305,869.36 : 591,014,127.24 = 242,627,119.92 : x - Step 2: Convert to fraction form
428,305,869.36/591,014,127.24 = 242,627,119.92/x - Step 3: Cross multiply
428,305,869.36x = 591,014,127.24 × 242,627,119.92 - Step 4: Simplify right side
428,305,869.36x = 143,396,055,524,273,616 - Step 5: Solve for x
x = 143,396,055,524,273,616/428,305,869.36 - Step 6: Final answer
x = 334,798,249.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.