Finding the Fourth Proportional to 821,977,216.34, 1,233,147,178.71 and 239,757,028.79
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Solution
The fourth proportional to 821,977,216.34, 1,233,147,178.71 and 239,757,028.79 is: 359,688,441.17
Step by Step Solution
- Step 1: Write the proportion equation
821,977,216.34 : 1,233,147,178.71 = 239,757,028.79 : x - Step 2: Convert to fraction form
821,977,216.34/1,233,147,178.71 = 239,757,028.79/x - Step 3: Cross multiply
821,977,216.34x = 1,233,147,178.71 × 239,757,028.79 - Step 4: Simplify right side
821,977,216.34x = 295,655,703,622,115,008 - Step 5: Solve for x
x = 295,655,703,622,115,008/821,977,216.34 - Step 6: Final answer
x = 359,688,441.17
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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.